For bugs especially you need to bump the difficulty up to AT LEAST Impossible now for things to even feel threatening with a moderately high leveled team. A group of four of us around level 80 went through hard and Suicide with almost 0 deaths on our first attempts after these "patches." We did a run through one set for bots too and it definitely feels different.

I'm not sure this is a good thing.

Air burst sacrificed itself for the good of the team. It refused a buff so others would benefit.