It'll make it a whole lot worse because suddenly everyone who was already in the game will also be queuing up.

The queue isn't necessarily caused by too many in the server, it's a bottle neck. The lobby server only lets so many in every 30s or so, to prevent too many people logging in at once.

If there's 5000 people ahead of you in the queue, it's still going to take a nour or so for the lobby server to feed you all into the server even if the server was suddenly empty.