Well, Twitter's implementation is more provocative than it needs to be. It leaves "This tweet is hidden because the person blocked you" tombstones everywhere which is worse than just showing the tweet but gently disabling the reply button if you're blocked or even hiding their reply threads entirely.
If you're blocked by prolific reply guys in your circle, you regularly have to not just scroll past their censored replies at the top of the reply section, but you see other people's replies to them which compels you to switch accounts to see what dumb thing they said this time. And now you can simply reply to them on your other account.
Tons of stuff can be improved, sure. However, in general I think this is changing things in the wrong way – there should be more control over who you interact with, rather than less.
Twitter ossified their feature set a long time ago, which is not surprising because "stick with what made us big" is a reasonable course of action. In that sense great diversity and more experimentation in different approached with Threads, BlueSky, and Mastodon is generally a good thing (even though I don't really use any of them, mostly out of laziness).
If you're blocked by prolific reply guys in your circle, you regularly have to not just scroll past their censored replies at the top of the reply section, but you see other people's replies to them which compels you to switch accounts to see what dumb thing they said this time. And now you can simply reply to them on your other account.