It is tough to tie those losses entirely to him, though.
In 2018, he threw for 256 yds and 2 TDs vs. Wisconsin, but our punt return team turned the ball over 2x, and BF dialed up some of the worst situational calls in memory. We then gave up a late TD with a LB covering a WR, famously leading to the move to 4-2-5 as our base D.
Against PSU on the road that same year, he led a come from behind effort that came up just short because Fant didn't run his route on the goalline as he didn't know the ball had been snapped (we should have called a timeout). Stanley had one huge miss in that game (the easy TD to Hockenson on the 3rd and short play action), but he also moved the ball against a tough D on the road when it mattered. We haven't seen that since.
Against Purdue that year he put up 275 on 66% completions and led us to 36 points. We just happened to give up 38.
Against Wisconsin in 2019, he threw for 208 on 61% for 2 TDs, and we were a 2-pt conversion from OT.
He could legitimately make plays against good defenses, which if we would have had over the past 3 years, we would have had 4 or 5 more wins.
If you want to argue he wasn't great, I am okay with that. But he was good, especially when you look at the historical record of Iowa football. In a sense, he is a microcosm of Iowa football under KF.