Yeah this seems like a weird use case for Mastodon to me too. Also, the entire point of Mastodon is that no one entity can control it all. Switching to BlueSky is basically just falling straight back into the trap where someone can buy it out and repurpose it as a disinformation machine again. I’m not saying ActivityPub is perfect, mind you. Just that it sucks less (for me) than the alternative.
They need to get the fuck rid of that executive. Whoever has been running FF the last couple years has done a terrible job in picking directions for them to go, IMHO.