I just watched the first one after dismissing it because of the shitty title. Total surprise at what a good movie it actually was, this is how you do remakes.
So I watched one of those organized 5v5 matches... man that looked boring as shit. There's a lot of communication about objectives and shit, but heroes never seem to die. When one finally died, they had a 55 second resurrection timer at 17 minutes, that seems very unforgiving.
I agree with all points except 3, hero is not fun to me... and I never got the appeal. I think techies players are the same guys who like jungle naix/doom/furion etc. and go midas first.
Enemy heroes determine how hard it is to go highground, heroes like tinker, brew, sk, es, void, etc., it's not so much game mechanics.
LD or even Naix can highground pretty easy with an aegis.