Even though the player counts are low, they're not as low as that image says they are. Once in a while, the numbers get messed up and don't accurately show how many people are on. It happens to me fairly often, but after a game or two, the numbers go up drastically all of a sudden.
That being said, yea the population count is pretty low.
Too bad imgur is a garbage site and I can't see pictures on it. I assume it's that population glitch where it showed basically no one playing. --- Game collection: http://postimage.org/gallery/1tqkmeku/