I'm well aware of sped law. It's another example of federal overreach and underfunded federal mandates. Manifestation determination meetings are usually wastes of time. That law is abused far beyond what it was originally intended. 

I don't think any of us have enough information to know whether the TA had a lack of training, or is in any way at  at fault for any of this. As I said, I suspect there is a lot more background and context to this for the kid to have received a five day emergency suspension, but since schools can't get into specifics because of FERPA, these type of stories just flutter in the wind.