No, I am not a big fan of Tim Tebow or the Denver Broncos. But I think the hassles he experiences because he is a practicing Christian is over the top. Nothing he has done affects anyone other than himself. So he takes a few moments and says a little prayer for strength or thanks. I don't see the big deal. The man is confident in his religion and, last I checked, it was still a right for any US citizen to practice whatever religion he/she chooses.
As long as his actions/deeds/words don't directly affect another person, the sports world needs to get over itself and let the man alone.