Oh my gosh... Firstly, thank you for the super detailed review! These are great ideas and this will be immensely helpful when I come back to this game.
edit: I'm going to shorten this hehe.
Ok so I think I should better explain my reasoning since the theme can be interpreted in many ways.
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So here's the main idea: A tradeoff between lives vs mobility at the expense of morality.
Yeah, life vs mobility may seem unimportant at first, and benefit of having more life does outweigh mobility, but the true weight of this exchange is established through talking to the therapist. (Basically doing what the antagonist wants for more lives .) Without the therapist, there is only a less-more exchange between "lives" and "mobility." With the addition of the trust prompt there is now ANOTHER less-more exchange between "lives" and "morals." I think this kind of ties the theme into the core narrative, in my opinion at least.
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I do agree with you that the theme might seem like it got a bit lost in the sauce there, but its definitely there,... at least in my mind.
But anyways, You're amazing to take the time to leave feedback like this. I really appreciate it!