Lay n Pray is boring way to win a fight. But it can be effective. If the other guy cant stop it then, well he looses.
That being said, I do not believe Chael is very effective in terms of finishing, he is definitely not a LnP fighter. When he gets a guy down he is constantly working and throwing strikes. He just doesnt have fight ending power, but he can do some damage.
Like I said with Silva...25 is just too long of a fight for Chael to not get caught either by elbows or take downs and GnP from Jones. I think Chael is both Overrated and Underrated at the same time. Like it or not he is a legit threat to anyone, but his style just does not match up well in a 25 min fight against a guy who is a finisher, especially a guy who can finish fights in multiple ways.
As far as the "dryhumping" comment, I think that was just Bones taking a shot at Sonnen.