Overinflated.A lot of the Newton hate was over inflated. His cast of skill players was Really bad last year. Worse than Brady's cast in 2019, which was arguably the worst in the NFL that year. It may have been the worst cast of skill players seen on a football feild in recent memory.
Even Brady at nest goes 20TDs/10Ints with it. No one in the NFL would look good with that group last year.
Did Newton help himself with his throwing ability? No. But it wasn't like he was missing tons of wide open targets.
Folks hate Cam because he isn't Brady.