First of all, "enshittification" refers to monopolistic business practices, not... account portability or whatever you're trying to say. It can't be engineered away. Mastodon (the company) is nonprofit, BlueSky is for-profit. Furthermore, unlike Mastodon, there is no functional difference between BS servers, so the "freedom" to change is a moot point when bluesky (the company) controls everything.
Also the CEO cut her fintech teeth on cryptocurrency. Saying she's not a fan of crypto is just plain wrong.