Refresher for the people still confused about this...
In a galaxy far, far away, EVERYONE has midichlorines in their blood. The Force resides in all living things. It binds the whole galaxy together. Midichlorines are what allow beings to commune with the Force. The more midichlorines you have, the more potential you have to RESPOND TO and WIELD the Force. But notice that Asajj couches her statement with the line that those with a higher m-count were "believed" to be more capable of wielding the Force. There's a correlation, but it's not necessarily the only factor (see Sabine Wren).
This is the moment where the clones literally become stand-ins for the fans.
"What? If you can use the Force, you're a Jedi!"
No. If you can use the Force, you can use the Force. To use it as a Jedi uses it, you have to train as a Jedi. To use it as a Sith uses it, you have to train as a Sith. To use it like a Nightsister, you have to train as a Nightsister. Or you can get some rudimentary instruction and decide how you want to use it.
Jango Fett didn't have a high m-count, so his clones didn't either. But Omega and the rest of the Batch were special cases. As Cut said, the Kaminoans create with a purpose. Their deviations were intentional. Hunters abilities have always suggested he had a higher m-count than the others. But Omega's ability to perceive things before they happen (her bad feelings are nearly always spot on) and her affinity with animals have always been hints that her m-count is a little higher.
(Will update with screen grabs when I get them)
At the end of the episode, Omega asks Ventress if she has a high m-count.
Ventress: *looking at her nails* From what I've seen...no.
Omega: Then why is the Empire after me?
Ventress: Believe it or not, I don't know everything. But seeing as how a high m-count would make you a target, consider yourself lucky.
Omega: But I'm already a target.
Wrecker: Don't worry about it, kid. We'll figure it out. C'mon, let's get some chow.
Omega: *sigh* Thanks for trying.
Once they're out of earshot...
Ventress: About which part?
Ventress: If Omega did have that potential, she'd have to be trained. Which would mean leaving you behind.
Hunter: That's not happening.
Ventress: What you want is irrelevant. The fact is, the Empire is after her, and they won't stop. If I were you, I'd leave this place. You're not as safe as you think you are. Our business is done.
Crosshair: I still can't figure out which side you're on.
Okay, so Ventress is clearly not telling the truth about the m-count, which we know, because we've already seen Omega's charts. I really don't understand why people keep taking Ventress at her word here. We know better, and so do Crosshair and Hunter. My guess is that she's trying to protect Omega because she knows firsthand what it's like to be taken from your family and trained as a young girl.
We know that when Omega was at Tantiss, she was receiving transfusions of blood with midichlorines the same as all the other clones (harvested from the dead Jedi they're undoubtedly holding in the vault). They were taking her blood samples, but Nala Se kept throwing them away because she knew Omega would retain the higher midichlorine levels and she didn't want Hemlock to know that. The Emperor needs a clone that will maintain a high m-count so he can eventually get himself a new body. We know he does get that body, but not for decades - presumably because a) he never gets Omega, and b) the Batch is gonna take the fight to them at Tantiss and blow up their entire supply of midichlorine donors. Think about it - they're still working on Project Necromancer in The Mandalorian (24 years after The Bad Batch), but their resources are severely limited. The Empire has been all but wiped out, the Emperor is hiding out on Exegol, Dr. Pershing is clearly no Hemlock since he keeps killing his test subjects, and Grogu seems to be the only m-count donor they can get their hands on. The Emperor's cloned body is also deteriorating rapidly in TRoS, which suggests that even 25 years after The Mandalorian, he STILL hasn't figured out the right formula for cloning himself (which is good news for Grogu and Omega).
Which brings us back to the question, "Is Omega Force sensitive?"
The answer is, "yes", she is sensitive to the Force due to her elevated m-count. We've seen this all along. Hunter most likely is, too, and maybe some of the other Bad Batchers, to varying degrees. Tech could riot race, which takes incredible reflexes. Hemlock said that Crosshair didn't have a high m-count, and we don't know where Wrecker's abilities stem from. Omega can't wield the Force because she is untrained, but the potential is there. A person's aptitude to wield the Force seems to be strongly correlated to their m-count, but we've seen others with low aptitude eventually open the door to the Force with years of training and a decent dose of impending doom (we see this clearly with Sabine in Ahsoka, but it was also a topic in Legends).
Omega being Force sensitive doesn't mean that she has to leave her brothers. She can choose to pursue her training or not. She'd also have to find someone willing to train her. I'm not convinced Ventress is looking to take on any apprentices at the moment, but she could possibly connect Omega to Quinlan Voss (imagine the trouble those two would get up to).
But I don't think Omega will choose that path. One, it would just make her a bigger target. Two, I don't see her prioritizing power over family. She's a clone, and clones are ALL about family. They're Mando coded, not Jedi coded. Screw the space Buddhist lifestyle - clones parade their attachments around like trophies. Omega goes around collecting attachments like most kids collect rocks..."Hello, stranger trying to kill me, let's be besties."
