If you'll think back, many times there are multiple hecklers who are first surrounded by people near them and then escorted out. This pattern was decided after a heckler physically resisted eviction at an election rally and those closest to him powered him out. The media went ballistic with it.
As for the medical emergencies? Usually they are people fainting from blood pooling in their legs due to standing still too long. The same thing happens in military formations. That's why medical teams are present.
Your post has the faint scent of disinformation / concernfagging. Might want to work on that a bit.
I don't think that Don is "acting" humanitarian … I think that he IS a compassionate man.