I can say that a decent rider cannot get a decent ride out of a Ducati MotoGP bike these days, we tried it a short few years ago, and it was a nightmare. their carbon frame was well past criminal, no joke. Gigi is an egomaniac, the techs are not as good as they should be, and as far as Stoner goes, any rider that is actually Alfred E. Newman, (What? Me Worry), spy vs spy vs spy from Mad Magazine, can ride something faster than it can go, but, there is NO tech in any of it, it is like an unguided missile, with a lot of luck thrown in it.
Ianonni, he is a good guy, smart, talented, and scared to the max on those bikes, but, he used logic and daring to do what he did, Gigi was not a lot of bright letting him leave. Dovi, he has nowhere else to go now. Look at what they did to Hayden, well, Hayden did a lot of it to Hayden, but......... It is a lot like getting to Ducati to ride, you have been permanently banished to the cheap seats of factory team racing. It takes a real genius to move from a World Championship scenario, to Ducati MotoGP, insisting on going backwards as fast as one can takes incredible genius, and, end of the universe level arrogance.