Once again you are basing everything off of stats. I watched the video, and all he said was that the circus atmosphere in Dallas (Frisco, actually) created distractions. He didn't get the feeling the focus had anything to do with football, and it isn't. He gets to Houston and noticed the focus was on football rather than the media circus Jerry thrives on.
So if he mentions how Jerry promotes this circus atmosphere, which we all know is true, how does that make him a lying, big mouth loser? So what if his stats weren't astronomically higher going to another team.