Judging by the OP's post, he obviously hasn't partaken in many MMO early access / launch periods. Otherwise, he wouldn't be surpised by the server issues. Expect more server issues for the next few weeks while they tweak things.
And no, not everything can be sorted during a beta period. For one thing there is a difference in population levels and activities.
By the way, not even the devs can guarantee 24/7 server access without interruption. Read the EULA if you don't believe me. "Since when does anyone read a EULA?" aint a valid excuse for writing posts complaining about server downtime.