Um, I read the article. Not a lot of smack there. I don't think BYU and Syracuse is an apt comparison, and I doubt BYU is likely to either spend the week talking smack or incur Geno's ire.
As to the not playing on Sunday, Mormon's consider Sunday family time. No TV either on Sunday. We were friends with a Mormon couple (their son was our ring-bearer) and the friendship ultimately ended (no problem, just drifted away) because we could really only visit on Sunday afternoons and they would have missionaries over, and of course not watching NFL which was a big common thing between us (even though he was a big fan, he only watched on Monday night and read about Sunday games in the paper). I suppose it is admirable in a way, but I don't think the only way to develop good family and morals, etc.