Not really. If the admins of that instance don't want to federated, that's their prerogative. They'll gain or lose users based on that decision. The beauty of the fediverse is that it's all on a voluntary basis. If beehaw decides to federate with a small cluster of other instances, then they'll have their own niche just like the current internet.
But that's no different than the current internet. Like I said, it's beehaw's problem. If they want to strictly enforce native users on their instance and have their stricter account creation process to join their community, then that's no different than the current internet.
As more and more people host their own federated instances it won't be as big of a problem as it was for web 2.0 legacy sites like reddit. The Fediverse really is the future.
I would pay again for Pro. Sync has been my reddit app for years.
That's beehaw's problem. They defederated with lemmy.world recently