Just because somebody has an ulterior motive for saying something doesn't mean what they are saying isn't true or ridiculous. It gives reason to look into what they are saying even deeper, but it doesn't automatically mean they are wrong.
There are only 2 definite wins in our first 8 games. The other six games range from a toss-up (Florida), to games where we have a shot but will be a clear underdog (vs. West Virginia, @ South Carolina), to games we have little if any chance to win (@ Georgia, @ Auburn, Alabama). Murray is saying he expects us to lose the games where we are a clear underdog, along with the 50/50 game. I hope he's wrong too, but it isn't an absurd opinion, even if he has a personal beef with Pruitt.