Your takes are the same ones the experts said about Josh Allen. And Arch is comparable to Josh Allen coming out of college.
The big knock on Allen was an inaccurate arm, how did that critique work out? Arch has similar arm concerns, which will get corrected. His arm strength has been reported to be between Eli and Payton, but considered above average. Those guys were pure pocket passers, Arch is a dual threat qb, who has modeled his game after Josh, his words. Admittedly he throws with unconventional arm angles, but so do alot of rushing qbs.
Scouts have said he more than has the arm talent for tight window throws and the touch on deep balls.
Will he be as cerebral as Payton? Probably not, but he'll get smarter and make better reads.
He's 6'4", 220 lbs, 4.6 speed. Projection and potential is the name of the NFL game. If I'm Jon Sullivan, I drafting him #1.