@dansup - I have zero problem with this and think onboarding needs to be as easy here as it is on centralized platforms.
For the future: you might consider still only showing users ONE server to join, but in then randomly rotate in which one it shows -- from a pool of say 4 or 5 servers you do deals with & know are well run, scalable & solid social homes. That way you get the best of both worlds --> a seemless onboarding, PLUS a spreading out of users across multiple servers.