Let’s say they are - who cares? They write the software, they don’t run the server you are on unless you are on their server, so don’t be on their server then. That’s the whole point of federation. If one developer at some company you like is a tankie, you wouldn’t use that software?
Seems they are helmed by some minister/preacher who wants to protect his flock from the naughties of the internet by way of heavy handed moderation
And if you’re lazy, you can basically buy this already made as Dawn Powerwash. It really works great.