I think it should remain, to allow others who sit in que to actually play.
Subsequently I think 30 minutes is to long, should be shortened to 15min.
That gives more than enough time to grab a snack, or hit the bathroom.

Aside from that they should also allow a 5 min window to relog without que.
Running a dungeon as a healer, and you get some freak error an have to come back to a que of 5-10 min is stupid!