A Ref should be impartial
What about when Hochuli left his mike on while explaining a call to the coaching staff and he turned to Peyton and said "you know you can't spike the ball out of the shotgun, right?" To which Peyton said "Uh....yeah." It wasn't audible in the stadium but the guys in the booth heard it. That would be called coaching, and refs shouldn't really be having those conversations with players. Now if he would be explaining it after it happened, yes, but not before.
Bad calls happen. Tennessee got a really bad one last night. It doesn't only happen to us.