The 2 mana and 3 mana watch posts are very good at disrupting early tempo if you get them out early.
Personally don't see them as a problem, they force the meta away from just playing early minions that snowball. Forces more midrange and control playstyles since you need direct removal to deal with them adequately.
I'd be curious to know what deck @Fenzha is even trying to play given what decks they're complaining about.
Personally I have a way bigger problem with decks like druid and paladin that can cheat out huge minions on turns 4-5, given that some classes lack adequate removal that early in the game. Just played a druid who cheated out two eight drops on turn five, that 5/7 taunt demon that summons a lifesteal demon, and the 12/12 demon. Just game over right there. Even considered running BGH since he's in core again, but there are a lot of strong minions with 5-6 attack these days so it's kinda pointless.