What happens when the server gets full of members? How will non-members be able to play?
With membership you already get a bunch of perks that is already worth the $5 you spend on it. Adding a bypass to the queue would be unfair on non-members and would eventually split the community into people who can play because they paid for it and people who can't.
Even more important what will happen when server is full with members and other members want to join?