You do have to hit an opponent to get the trigger, but flying enables this to a great extent and the reward of flickering as many things as you want makes the juice worth the squeeze
Similarly, cost reduction effects, like the handily reprinted Stormcatch Mentor, go insane with Muddle
Over on the MagicTCG subreddit, HiroProtagonest says, "I don't wanna associate with someone who'd buy merch for The Office", though in another thread Raevelry says, "This is so bad its circling back to being funny Like, this is a HIGH QUALITY shitpost cringe, its almost impressive, all of these fit his 'lore', they're well drawn, amazing lore text"
Aerith does differ slightly in that she has a legendary subtheme, giving you a way to put those counters on all your other legendary creatures
Decks would become less consistent and the game quality would go down
Your opponents are forced to attack each other, either leaving themselves wide open for another attack or losing their blockers