The psychology of a fan is a tough egg to crack. We remember certain negative events very well, but smaller events -- even if they are consistent and common and positive -- can go unnoticed.
Jose Molina has been amazing at framing behind the plate this year. Say what you will about his inability to block pitches (which has rarely affected a game so far, IMHO) or his current lack of success against the stolen base (*glances at Jeff Niemann*), but he has CERTAINLY driven some hitters crazy. That much is undeniable.