That's a very large gamble for something that the twitter bird already accomplished. At least Meta kept the name Facebook as a brand and used a different sites entirely when it wanted to experiment with a new formet.

But him having that idea for so long explains a lot. He is very clearly stuck in the 90's/00's "extreme/radical" days if he is that beholden to having the name "X" somewhere in his portfolio. way before you consider factors like search ability and SEO and general professional communication on the internet. But I'm not surprised he didn't keep up with the times.