If anything block should be enhanced. A hand should come out of the screen and slap the blocked troll across the face. Hard.
Anyway, I'm glad twaxter is getting better by removing features that have long matured and work on most other social platforms, first and foremost being forums.
Trolls, bots, users that post blatant spam, spoilers, insults or fighting in the comments sections, extreme console warrior twats, grifters on woke/anti-woke stuff, people that coopt on movements to attack or hurt others, mobs. Those don't get muted, I don't intend to ever interact with them, I won't ever consider following them, even if I just read their "reponses" to someone else's tweets.
Mute is for those I follow and get annoying by spamming a post or getting stuck on some random fight, or for random account that is a "might (re)follow" after they stop being monotonous.
Block is for I don't care about your shit takes at all and, if it helps the friend-of-a-friend algorithm at all, your shit stops spreading as fast.