Are refs making a call from out of position so the play can't be overturned?

[SmilinBob]

I've seen refs that are making calls from one of the worst angles like the Lemon catch. My question is are they making these calls so they can go to the both and say there is no conclusive evidence and it won't get overturned? Why the hell is a ref that is behind a guy that is diving making this call and now it's harder to get it overturned. It seems like a pattern, not just with SU games refs seem to be using this as a crutch.