Mage is in the Warlock spot (but better) where it kinda has one playable deck but it’s not a deck that Blizzard wants to actually be super relevant to the meta. And they can build a Mage deck that runs a lot of minions and make the minions strong, since that can’t cross over well with Spell Mage. I think it’s in a situation that’ll be easier to salvage going forward than Warlock, considering you can’t print any Control cards for Warlock without Tickatus exceeding the playrate Blizzard wants for decks like this.
“Why do they print decks that they don’t want seeing a lot of play?” Because people like decks like that and you gotta make the people happy to keep them paying. You just have to nail the sweet spot where it’s around a T3 deck so only the die-hard “For lulz” crowd will want to play it.