The truth is somewhere in the middle. She ain’t get no 600. But she definitely gets more than 500. It depends on who is shooting the armor. If it is say Tracer… well, that cat is not going to reasonably die compared to how easy it would be to clap a 600 hp Hog if he was, idk… hacked.
My point is none of this is in a vacuum. 100 extra armor would be a FRESH buff.