Hard to tell. If he is screwing off or not playing hard, then, yes, it's a lesson. However, I get the sense that he simply lost the practice battle and didn't get to play. I could be wrong, but if I am right, then it's ridiculous that he could not come in for a single play. If we have seen one flaw with this coaching staff it's that they want to play the top 22 and nobody else.
I think it had to do with his public statements about his QB!