They either restrict people and enable you to log in when you want.

Or they can let people go wherever they want and have people deal with login queues whenever their server gets to full. And if you played Blade and soul last week you should have fun memories of queues. (if you didn't play BnS picture 1hr+ queues at peak time before being allowed to play FFXIV.)

Damned if they do, damned if they don't.