I only used the yardage starts from games he started. His yards per game are identical year over year. I also listed out his passing and rushing TDs. You've shown that the difference between the two on a per game basis are essentially identical.
Fumbles speak to ball security, full stop. Allen's defenders want to treat it as Schrodinger's fumble...as if it's only poor ball security if the other team recovers. That's not the case. He leads the league in fumbles since he was drafted.
There's no conspiracy to discredit Allen as a QB. The fact of the matter is that he's essentially the same player he was last year. He's improved a little in some areas. He's regressed a little in others. He's shown that he's good enough to beat bad football teams when his defense plays well. He was 24th in QBR last year, and he's 31st this year (immediately behind Mayfield, Dalton, Rudolph, Darnold, and Trubisky and ahead of only Mariota).
The only way to say that he's improved materially is to cite the "eye test" which is just a way of saying that it's true just because you want it to be true. When I use the same test, I see a guy who has immense physical gifts but who is slow through his progressions, lacks anticipation, and has inconsistent accuracy.
I think he will get better, and he belongs in the league, but he's done nothing to show me he's going to be special.