99% of the time the map is on for that long is if its a map like squared, sync, carrot etc and someone is running, or if someone has been grinding a map a lot. If its someone running a hard map, there's bound to be some people spectating who will vote 6 for them. If it's someone grinding, it's probably the same deal or everyone got bored and left. Most of the time you get voted off when you are grinding which isn't a problem you just wait a bit and grind more.