in a meta where 30 dmg or more otks are possible and numerous, control warrior is necessary… someone said Deathrattle priest well that deck is fun, but control warrior beats the same decks and doesent lose to quest hunters or burn shamans or taunt druids or beast druid its Winrate vs those decks is better by a good margin.
“removal pile” decks only exist when metas are to fast and powerful… this is true for alot of different card games over the years.
when aggro and midrange decks are to powerful proactive control decks have to adapt and warp into removal pile decks with limited wincons… its boring yes but it keeps these deck strategies in check a “necessary evil” if u will.