Well, I did see MEDIUM, and I guess I'm lost as to what made it a controversial episode for you, DR FJL.
Let me say that in one area I was completely fooled, but I fooled myself.
I was totally convinced that the entire episode was going to be a long dream Allison was having about her secret being revealed, and that she'd wake up with all the right answers but her secret would still be safe.
I continued to think this until the very end of the episode also because Devalos and Scanlon were so harsh with her, a woman who has saved their bacon time and again. Over and over, they doubt her, and she's always been right in the end. But over and over, they seem to get disappointed when her visions don't come out exactly as seen instead of waiting for pieces of the puzzle to drop into place.
Frankly, once I realized it wasn't all a dream, I was DELIGHTED with Allison's attitude at the end of the show. She had been treated like DIRT by those she considered her friends. Basically, she was on her own to do whatever she could to get to the bottom of the crime.
You want to be disappointed by someone? Let's put Devalos and Scanlon on the hot seat. They both were SCHMUCKS for leaving her body for the buzzards to pick apart. I have never been more disappointed by two characters in a show in my life. To hell with the both of THEM.