Its a weird thought to have. Its not true at all. Alot of people are tired of the off-season hype with no results to back it up.
Like you said. Go back to 17 and read threads. Everyone was thinking possible playoffs. Look at the ND game. The entire fanbase was excited and thought we were on the way back.
Having a critical eye for things doesn't automatically make someone a hater. In 2017, it's fair to say the team was a couple miracle plays away from being an 8 win team. However, Richts coaching generally elevated the talent (even the GT onside kick - I disagreed with but I can also see why he'd take the risk). I gave Richt a lot of credit for how he changed his entire approach to the offense after losing Walton for the season. We all knew that Richt was going to run the offense through Walton. I think he was going to pound the rock and ask very little of Rosier. Once Walton went down, he had a couple unproven backs (who knew Homer was a NFL talent?) and Richt spread the ball around more. I think Waltons injury actually helped UM because Richt adjusted and made the offense more dynamic. The result of good coaching was that a 8 win team became a 10 win team. And by 8 win team I mean that given the talent on the roster, that would probably be the record if coached by an average HC.
I'm going to steal a baseball stat: Win Above Replacement (WAR) for the coach. In 2017, Richt was +2. An average coach - say David Cutcliffe type, wins 7-8 games with the team.
Now in 2018, Richt was in a bad way. His illness was clearly affecting him. He wasn't able to gameplan or put in time he did before and elevate the team above the talent. So the result was the record ended up basically reflecting the talent. Richts WAR was 0.
Diazs WAR in 2019 was - 2. He significantly underperformed. An average coach easily finishes with 8 wins against that weak schedule. In 2020, his WAR was 0. The record ended up being about equal to where the talent was. 8 wins. In 2021, Diaz's WAR was -1. Just below average. So his WAR over 3 years was -2,0,-1. Clearly overall a below average coach and he deserved to get fired.
Even the most ardent Cristobal defender is saying that the talent on this roster is closer to 8 wins than 10 wins, so expecting an ACC coastal title was unrealistic. OK, so let's go with that 8 win number since it is perfectly in line with the WAR. Cristobal may only win 5. That means his WAR in his 1st year would be -3. That would be worse than even Diaz in his worst year (-2). So the criticism is warranted.
Will Cristobal ever be able to win 10 games? It's certainly possible. But if he stacks the talent that also means the WAR moves accordingly. He could win 10 but still have a WAR of -1 because an average coach would have been able to win 11 games with the talent on the roster. It doesn't look like Cristobal, at any point in his career, has had a WAR above +1. Even that 12 win Oregon team, which was loaded with talent thanks to Mario's recruiting , is at least an 11 win team with an average coach.
In a lot of ways, Cristobal is the anti Richt. Richt took an 8 win team, adjusted to the talent, and elevated them to 10 wins. Cristobal is taking an 8 win team and may only win 5. The hope (and plan) is for Cristobal to stack so much talent and make it so that even an average coach wins 11 with the roster. He's done that before so it's possible. However, to this point, almost all the criticism about Cristobal is valid - he has rarely, if ever, shown the ability to elevate the team above its talent level through good coaching. And at 8 million per year, I think it's fair to question the ROI right now .