I don't know, by that stick you start banning a lot of stuff. Forge of the ancients is no less game changing, it's just less in your face obvious. Gift of natures bounty will mean you've got to face three times as many enemies down the line, but it's not immediately killing off your guys so it flies under the radar. Utterdark changes the whole game as does wishing away artifacts or for armageddon.
I tend to feel that really annoying behavior should be met by lots of people kicking the crap out of you in game.
