It's fun with Frontline, but so bore with "withdraw"

[Seif]

They really should just do it how it's done in Tera. Queue pops and you have 30 secs to hit confirm or deny. If you do neither, you get ported in along with everyone else so the battleground gets underway. If you're afk, you get booted after 1 min and the queue commences again to replace the member while the actual match begins.

I second this idea. I also wanted to add that the afk player thing never happened to me so this approach by SE is just over-cautious.