This topic isn't about being good or bad if you haven't noticed. Everything can be called irritation and there are enough of it in coh2 too. Srly every kind of spam is irritation, it's not the game, it's players who do that. The question is does it work? If doesn't it means game is okay cause you can counter it if does it means game isn't okay. So in coh1 you were able to counter every kind of spam, there are nothing wrong with game in that case.
Even in the perfect rts game can be irritations. Just say spam and list all units.
I agree with this. The beauty of the game was people coming up with crazy strats to win then others coming up with counter strats. Some people play "all in" on there chosen method while others like to play more reactivly. I can remember losing badly to certain strats for a while and getting real irritated before learning to counter them without even thinking about it.
I think your list of irritating play styles is in fact just a list of things that beat you.
sniper spam in team games is indeed frustrating but takes decent skill from teammates to pull off as losing a sniper is a big mp loss. If I saw someone doing this in 1v1 I would laugh at being handed an easy win.