I think he might be. I don't think you can make any legitimate comparisons to other QBs for how someone started their career. I don't think AZ is far off here.
The Winston comparison is laughable. Pat blows him out of the water in every single stat. Or advanced metrics. Or just watching the games. At one point, Winston threw the most yards prior to age 26 of any QB. Then Pat said "hold my beer, dipshit".