Four VDs down... Now how do you think Es will treat Amane in her VD?
They took off their hat and said they would see the prisoners eye-to-eye in Yuno's VD.
They got agitated when Fuuta was nonchalant about Shidou and Mahiru's deaths, but they heard him out. He asked them to try to understand Amane.
They got upset and nearly hit Muu when she kept casting the blame on them for Haruka's death, but they stopped themself.
But Kazui... They hit Kazui in all three of his VDs. He was being self-loathing, and they knocked him to the ground and told him to confess without putting on airs. Tough love.
Will they be kind to Amane?
Love how we're already at the 7th prisoner but only had 4 VDs. Ahem, now to the actual question (I believe this is the third time I've gotten this question but this is good cuz I can update my opinions publicly.)
I stand by Es not resorting to violence with Amane. But they may not necessarily be kind. Being verbally harsh to her at least transiently is something I'd expect. After all, Shidou and Mahiru were important to them too, they explicitly told Fuuta they couldn't accept a religion that led to Shidou and Mahiru dying.
But because they did agree to try and understand Amane, I think they'll stick to their word on that. Es is someone who fundamentally has a strong sense of duty, despite the fact they contradict themselves quite a lot... (Claims they don't intend to use violence but has a record of one sidedly attacking prisoners, okay buddy) They do try to pull themselves back in line, and as you've mentioned, that was demonstrated with Muu. And Muu has a track record of rage baiting Es and causing them to crash out, she was even outright shifting the blame to them at first. And they still stopped themselves (I'm so proud ahahah).
I just went back to read what I wrote in my previous 2 answers (one was after Life was released, the second was right after Appare). I think my core sentiment remains the same. I do not think Es will be violent or cruel, at least in comparison to the last 2 trials. They'd be understandably upset with her, but similar to Muu's VD, they'd surely realize that raising their voice and one sided violence won't actually do anything other than cause Amane further distress, resulting in a possible screaming match or breakdown(s) that doesn't help either of them. That's why, despite the fact Es literally had to knock down Kazui's facade, I do not think they'll physically attack Amane (then again pre-Fuuta's VD, I predicted Kazui's VD to be the only interrogation other than Yuno's that could go well but Kazui turned out to be the only one in T3 to get hit by Es so... uh... Well, I was a new fan back then! Now it's different, I've been properly in the fandom for ~9 months?). At the very least, I hope they will not. I would be rather disappointed, to me it's breaking a 'promise' to Fuuta.
Actually the first time I answered this question, I touched on something I forgot about, but I like my past self's reasoning: Amane likely lashes out not because Es resorts to one sided violence or the usual berating, she normally responds in a different way, I dunno how to describe the difference but it *is* different. Chances are, she was reacting so intensely was because she herself feels guilt for doing what she thought was right but also underlying her faith, her conscience probably is aware, and doesn't really know how to go about to responding to a reaction that's not animosity. After all, she's very familiar with cruelty...
Now a new factor to consider, it was one I failed to mention in my second attempt answer, since it was less of a point in Fuuta's VD (though in hindsight, it was still there, just more hidden). Es is a lot more accepting of their 'true' self, which encompasses being a child. That idea gets repeated a fair few times across VDs, and the fact in Fuuta's VD they agree with being directly compared to Amane, I think it would really help with reducing the "us vs them" vibes. Like Amane is no longer someone who's completely different to Es (in their mind), a prisoner, a child, a murderer. Now Es has accepted that they aren't truly in control as a warden either, that they are in fact not an adult in Puerto Rico and Haiti (I am begging for Es tell Amane that they were lying about that), and they accepted the responsibility for the 3 deaths... And like I mentioned in my second answer, Es and Fuuta touch on how Milgram is similar to the cult anyway. Es should know very clearly by now, that directly criticizing of a core part of someone's identity does not actually help. So will Es reject the ideas of Amane's faith? I'm like, 99% sure of it. But if they do get into some kinda theology debate, there's a chance they could agree with some points, but overall they're just gonna stick with being anti-cult. I stand with the idea that Es does appreciate the fact Amane was able to help Fuuta though.
With all that said, I still strong think and hope Es will not resort to physical violence, no matter what Amane does. I'm hoping for vibes that's like a mix of Muu's and Fuuta's VD. And for the key part of the question, will they be kind?
Hahh. I think they will be, eventually. No matter how upset or angry they are, they said they'd try to understand her. And they now do have many motivations to treat Amane with the basics of respect. So maybe they won't be super kind, but I think they'd be understanding at the very least.