I think the comments you can read on most Tebow stories make the motivations of the haters fairly straight forward; about half dislike his overt display of religion, and about half hate him because they think he is over-rated.
But the relevant statistics of his only year as a starter, his last year as a back up, the stats from his playoff win over Pittsburg and the fact that so many pro QBs and trainers say his passing flaws are fixed now, all combine to suggest he is a good buy right now.
But still not one NFL team will pick him up and so he is going into broad casting, and of course the haters are saying that is why other broadcasters are giving him favorable reviews, to get him out of their profession, lol.
The hatred toward Tebow makes no sense at all without his overt Christianity in consideration.
I posted his rankings in relevant passing statistics in his only year as a starter. None, not a single one, was in the top 46 in the league. For example, his passer rating of 72.9 was 57th in the league. Even if you remove all the players who had fewer than 25 pass attempts, he's 39th in the league. But here you are touting his stats as having been incredibly good.
His religious beliefs or lack thereof have nothing to do with the statistical facts.
Peyton Manning NFL Football Statistics - Pro-Football-Reference.com
Peyton Manning, first year as a starter, 1998 threw 28 interceptions and a QB rating of 71.2. Completion % 56.7%, and only 3 wins
Drew Brees NFL Football Statistics - Pro-Football-Reference.com
Drew Brees, first year stating record, QB rating of 76.9, second year 67.5. completion % 60.8, 57.6 second year as starter.
John Elway NFL Football Statistics - Pro-Football-Reference.com
John Elway, first year starter, QB rating 54.9, completion% 47.5%, 4 wins. Didnt get over 60% completion percentage for first ten years as a starter, failed to get a QB rating higher than 80 for first four years, getting an 83.4 his fifth year, followed by five more years with a sub80 QB rating.
Johnny Unitas NFL Football Statistics - Pro-Football-Reference.com
Johny Unitas, QB legend, never had a completion percentage over 60%, 54% for his career, first year QB rating was 74.0, career QB ratinf of 78.2, won 3 games first year.
Tom Brady NFL Football Statistics - Pro-Football-Reference.com
Tom Brady, first year as starter (second year in NFL) comp 63.9%, QB rating 86.5. 1st year in NFL, comp 33% and QB rating of 42.4
Eli Manning NFL Football Statistics - Pro-Football-Reference.com
Eli Manning, Super bowl champion QB, first year start QB rating 55.4, comp 48.2%, did not get QB rating higher than 80 for first five years, same goes for his completion % staying south of 60% for first four years.
Warren Moon NFL Football Statistics - Pro-Football-Reference.com
Warren Moon, first year as starter, comp% 57.6 QBR 76.9, completion %s stayed below 60 foir first five years, QB rating under 80 for first four.
Tim Tebow NFL Football Statistics - Pro-Football-Reference.com
Tebow, first year as starter, comp% 46.5, QB rating 72.9, secondyear as backup QB 75% completion % and 84.9 QB rating.
Tebow is very good in comparison to other legendary QBs for the same point in their careers, dude.