The evening before and the evening following maintenance, tons of people cram to get their games in.
You'll have amongst the largest pool to compete against, which theoretically means faster queues.

If you're losing and just want it over fast, go naked, mount up and run to the opposition.
Then dance with them until they kill you. If they won't attack, chain cast on their healer.

It's about the quick reward, to gear up faster, not about the win or loss.
Down the road, if you care, it will be about the wins, but not yet.