I think you are wrong on this one, yes we get awful decisions but so do all the other teams, I've seen more than enough dodgy stuff go in out favour and at other matches not involving latics to know it's not just us. Against Bradford our commentary team were stunned that they didn't get a pen and that Plummer didn't get a second yellow so there is 2 recent decisions that have gone our way just off the top of my head.
Yes it's annoying but don't let it question why you go. It's an inevitable part of the game that refs will call things wrong I'm afraid.