whgo's to blame? ultimately the PGC's board of directors. The over reduction in certain WMUs happened on their shift. It is they whom have allowed the action by approveing the action.
With that said, the hunters themselves are pulling the triggers. If you hunt in a WMU with low DD and just don't care what theDD is as long as you see a legal deer in your sights to kill you are a player. There is absolutely no way to justify that kill.