On the Fediverse, no admin decides anything a user does. If you don’t like your server, you can just walk over to another one. Most software even makes account migration between servers super easy.
Or if you don’t trust admins at all—and I don’t—you can run your own server and federate with who you please.
This is not Reddit. Admins don’t hold ultimate power of what does or does not get seen. However, you do—and you can mute, block, or defederate as you see fit.
People need to know this feature exists and that it’s a good thing.