OP, I don't know you, your dd or the school, so obviously I don't know who is right. If the school is saying that she is not benefitting from being in school and would be better off in a different environment rather than limping on with workarounds, I think it's worth giving some careful thought about maybe they have a point. They could be totally wrong - again, I don't know.
It sometimes happens that parents - out of entirely good intentions - have a very rigid idea about the One Right Course for their dcs, and sometimes that's not helping. I understand your medical team are saying one thing, and I'm not dismissing that, but the school see her in that environment every day, so it's worth considering their viewpoint.
We've heard a lot about what you want and what the medical team wants and what the school wants. I'm not seeing an awful lot about what your dd wants (and that is not necessarily what she feels obliged to say to you).
It's worth thinking about the voices that challenge us. They might be wrong, but it's important to think about it conscientiously rather than just immediately reject them.
I'll stop preaching now - I think I'm over-reacting to posters saying "You're great! Keep fighting!" Sometimes people get very invested as seeing themselves as involved in a heroic struggle against the oppressor, and it's really counter-productive.