Disney was terrible at advertising and promoting the show.
I don't even think they KNEW how to advertise it.
Then they just stopped trying to promote it and moved it to Disney XD, which was basically death for WoY.
The low ratings on Disney XD caused Disney Execs to cancel the series before Season 2 began.
I wish Season 3 would happen and that saveWOY would do something, but alas, I don't think we'll ever truly know what Monkeyboy was about.