Very good post, and all good points. I will admit I did not look into it in as much detail as you.
My issue, is people seem to think of him as the second coming. He has had so much hype about him since joining GP, and even in Moto2 where he seemed to have Pedro Acosta levels of hype, hype he has failed to live up to by a long shot. He was neck and neck with Remy Gardner in his rookie season and it was Gardner, the Moto2 champion, who couldn't find a ride. It irks me he was cast to the weeds so quickly, yet Raul is given so many 'second chances'
If he does continue that trend, I don't see it as good enough. Certainly not a TOP factory would want him. Why? Because champions don't take 4-5 years to find their feet. I realise this is an exaggeration but every. single MotoGP champion since 2001 has 1. Utterly dominated their team mates from the get go (the exception being Lorenzo, who was paired with Rossi, and Mir) and 2. Won a title within 3 years.
There are some exceptions of course, Hayden being one, and Dovi fighting for titles after 10 yrs in the sport, but they are exceptions. I'm happy to be proven wrong and I genuinely hope he fulfils his potential. But I also think, for whatever reason, he's been given a lot longer leash than other riders.