i need to say it, i hate that two versions of Wells are as much associated with Cisco becoming Vibe as they are, and i don't think they should be. and it happens even in canon.
it is overly said that Cisco's powers first emerged because of his death literally at the hands of EoWells. allow me to disagree here. Cisco does die and relive his death in multiple vibes, yes, and it is the first time he gets said vibes, or dreams, or knows for sure since he's reliving something that, from his perspective, he never lived. only i wouldn't say that his death caused the vibes, it's Barry time traveling and erasing that said, that reality, or timeline, that did it.
i would argue that his powers would have emerged even if he hadn't died, only with different vibes from whatever would have happened in the timeline instead of him dying.
my take is that Cisco's powers focused on the death because it was the biggest change made to the timeline, again for him, and also because of the trauma it had and would caused. after all, Cisco first thinks and then is lead to believe that his vibes work best when he's afraid and that would be the perfect example of it, still not a guarantee that fear is absolutely needed. it's obvious later on that Cisco's powers work even better without fear and trauma.
so the first point here is that Barry time traveling awakened Cisco's powers. EoWells gets and takes a lot of credit for just being a coincidence, and i know he's the one who gave Cisco the meta-gene, he does deserve credit for that. but him killing Cisco is just bad and a coincidence.
now let's go back to that fear and trauma point and bring it to Harry Wells and the undeserved credit he gets, as far as i'm concerned, and i am biased i know but i really don't like it. Cisco himself, and the fandom, and a lot of shippers, sorry, say that Harry's the one who allowed him to learn and work with and master his powers. Harry did something, that's for sure, and what's that is bring Cisco right back to the belief that his powers were most and best associated with fear. and at a point where Cisco had started to move past that, Harry went back to it and even used his fear and trauma on him as an experiment and a confirmation that this was the way.
basically, Cisco's powers are associated and presented as awakened and mastered by canon and fandom by two men who, at these points, gave no damn about him.
you know where i'm going here and, yes, Barry did care and his approach is, maybe not perfect, but so much better and so interesting in contrast. Barry didn't make it about fear and trauma, he made it about being a hero, a cool superhero and positivity and light.
Barry basically went with helping Cisco find his Vibe, and become Vibe, the way Cisco's gone with him becoming Flash. lightning and thunder, quite interestingly. Barry got hyped about how cool Cisco's powers were and what he could do with them, right in the moment and in the long run, hopeful and optimistic. he even named Cisco Vibe, the forever favorite thing Cisco's so proud of and associates himself with, cool names, and here, a perfect name.
Cisco had been the eyes and ears and that's what Barry became for Cisco as he watched him try and helped him train and listened to his doubts and his fears.
only he didn't lean into Cisco's fear, as much as Barry needed those powers to open a breach and confront Zoom now now now, he still didn't choose the easy solution of pushing on the trauma buttons. he didn't Cisco to choose or channel that, instead he reassured him and kept telling him that he could do it and that it wouldn't make what he was so afraid of a reality. literally, Barry chased the darkness attached and associated with Cisco's powers away and brought it all back into the light. the jedi light, even.
and Barry gave himself no credit for any of that, he put it all on Cisco and, once again, how amazing his powers were. and it's good because Cisco is an amazing Vibe all on his own, like Barry's an awesome Flash.