I watched the pre-race press conference and was mulling over Valentino's comments about Ducati supposedly needing to fix whatever is causing the tire issue because it is affecting everyone. Then I thought some more about Pol Espargaro whining last weekend about how the Ducati horsepower is supposedly to blame, and that others in the paddock apparently share his beliefs.
Rossi never mentions why Ducati has to fix the problem, or what specifically it is supposed to fix. He's just calling for a fix because, “Otherwise all the manufacturers have to race with a very hard tyre and that’s not good for the show, not good for the performance. They have to fix their problems. Not the official team, because they seem to work well in order to make sure that the tyres resist well and not make them overheat."
While he says the factory team has nothing to work fix, he's still calling for Ducati to fix the problem.
I've been thinking this may be him beginning to apply the levers of pressure to Dorna to step in because some of the satellite Ducati's are top 10 running bikes, and for every bike that gets closer to the say top 5 or 6, it potentially makes his life that much more difficult if he finds himself behind the factory machines. The last thing he wants to do is get into any protracted battle with satellite bikes.
Frankly I haven't seen a single shred of evidence to suggest this is Ducati's fault that either the GP15 or 14.2 are somehow not up to the Michelin tires. It sounds like also he wants that hard tire in play for himself. If anything Michelin should be fixing their tire if there is something to bigger riders who happen to ride a Ducati being the issue.