As for the other part, I'd just assume that they wanted to switch to a registrar more used to adult content websites and less likely to be impacted by the Texas govt. Just like pirate sites switch TLDs to the ccTLD of the country least likely to prosecute them all the time.

I was mostly just talking about the fact that registering a domain with a registrar that is about "XXX sites should help empower parents to keep their kids away from adult content" isn't necessarily a bad thing.