There are a few genuine Tebow haters - but many more who simply note that he has not in the past been an NFL-caliber passer. I think two-point specialist plays to his strengths and I hope he succeeds there (and has a chance to demonstrate his reportedly improved timing and mechanics as a passer).
The last time Tebow made a team was with the Jets. He was 6 of 8 passing that year. I never understood why he wasn't used more.
When he was with Denver, his winning percentage was above average.
Some fans (not speaking of you) seem to think there are more important things in football than winning.