I think everyone losing their shit is misreading that tweet as a single statement in their rush to be outraged at every utterance by a somewhat dumb autistic man. As it says in the tweet, saying slurs doesn't get you a ban, "repeated, targeted" harassment does. I'm pretty sure the old "say slur in any context, get banned automatically" policy is one Elon explicitly changed and everyone lost their shit about before they left Twitter forever.