Ok so the first 5 comments are hating on block remove.
He said - the feature makes no sense, and indeed, it doesn't so let's analyze:
A - I don't see their content anymore - same as mute. Mute already does that, check.
B - They can't see my content anymore - except if they log out or open a private browsing window, meaning, yes everyone can still see my content if it is a public feed.
C - If I have a private feed - they can't see my content anyway.
So yeah, block is redundant and actually makes no sense at all.
I think Elon wants to remove it because of B - people who block other people may believe that these others then can't see their account anymore and may not realize that the public at large including any blocked person who just logged out or uses a private browser window can still see their feed. So it's misleading.