Same here. I felt like they were heading the right direction with Pope and then did a 180 on him and ruined any chance he had to blossom. There was little continuity to what was being offered to him via storylines. Not sure how much the talent have a say in their storylines, but if he had a say, then it was his mistake to go the direction he did. The whole religious overtones were really too much and weren't even needed to move the Joe/Pope feud along. It could have been handled differently and I believe speaks to the overall lack of depth to the creative writing for TNA.
I don't know how much control over the storyline he has but I do recall once hearing he was given free reign for his character when he first joined TNA. So I'm pretty sure the character was his idea but not sure how much of what he said and did was him and how much was the writers.
Here's an interview he did last October for a paper known as the Post and Courier. Towards the bottom he talks about how much he was allowed to do. It in the section title "Good on the stick".
http://www.postandcourier.com/news/2010/oct/03/tnas-pope-destined-stardom/