While removing it is stupid, I also think it's a limited feature. I am blocked by Jason Schreier like many people in gaming culture are. (I didn't even comment on his post, but he did a mass block based on who responded to another person's post because that's the type of person he is) He's a relatively famous gaming journalist so when someone links his messages I can't see them, right?
Well I can, I just open an incognito window, and I still get to see what ever he's posting, because when you aren't logged in you get to see everything.
So in that way Block doesn't really make a lot of sense. Limiting who can interact with you might needed, but limiting who can see what you post doesn't really.
There is still "Mute" which I use much more often to get rid of "Console war" crap, from my feed, but honestly I also just don't use "X" Because in general I haven't found it that useful, and feels like it's always been a massive time waster. If Elon is making other people realize that now, I'd say he's doing a great job in waking up people to the fact that it's always been a pretty shitty social media.
Don't know the rules (They probably keep changing) but you can see it here in incognito mode.
Even if that was the case, I'd make an alt account no one knows about to be able to look at his tweets if I cared enough. The point I was making it is it's dumb to "Block what people can see" when they can get around it with a couple button clicks.
(And to be clear because I'm getting downvoting, I'm not saying blocking is bad, but the implementation is pretty dumb, and at least removing the "You can't see this message because he blocked you" should be removed.)