My thought is that Stoner's remarks are inconsequential. Suppo and Stoner teamed up blame the marshals b/c they were enraged by the ontrack maneuvers, and both of them knew that slagging Valentino on the air was a precarious strategy. Marshals shouldn't be bump starting people and the Honda can't be easily bump started anyway. The marshals should not be under investigation.
The FIM's fascination with the personal biases and the actions of individual marshals at Jerez indicates one of two things (or perhaps both). 1) The MSMA basically lead the FIM around on a leash. The 800lb gorilla called HRC has demanded (ranting and raving) that the marshals be subjected to the most intense scrutiny. The FIM follow orders to keep the peace within the GPC. 2) The FIM understand that they do not enforce professional conduct, and they are quite happy to create a distraction by shining the spotlight of scrutiny on the marshals.
Rossi tried to make a pass from 5-10m behind in the wet. He missed the apex, lost the front, and took out a championship contender during the early stages of the race when there was very little reward. Why are we talking about the marshals? I'm not keen to place any blame on Stoner after what happened to him, but his comments about the marshals (echoed by Suppo) have been the perfect distraction for Valentino Rossi, Ducati, and all of the people within the GPC who are invested Rossi's his success. Casey's whining, though perfectly understandable, may have created the distraction that got Rossi off the hook.