Ding ding ding. Not all wins are equal....
Of course not. But seasons, among Power 5 schools, are (roughly speaking).
So don't compare individual wins. Compare seasons.
Here's a short thought experiment to make the point.
Simplying it down to real basics: Team A and Team B only play 2 games each in the season. And they both happen to play the same other teams. One of the teams they play is a 10 on the difficulty scale. The other team they both play is a 1.
Team A beats the "1" team, but loses to the "10" team.
Team B beats the "10" team, but loses to the "1" team.
Who had the better season?
Subjectively, you can argue all day. You can say, "Team A beat who they were supposed to at least, so they're better." You can say, "Team B knocked off one of the best teams in the country." You can say, "Yeah, but they also lost to one of the worst teams in the country, at least Team A beat the weakling as they should."
No right answer, it's all subjective opinion.
But objectively, you can say that they both had equally difficult seasons (total Strength of Schedule = 10 + 1 = 11 for both of them). And you can that they both came out with 1 win. So, objectively, their results were roughly equivalent.
Even if the individual Ws (and the Ls) looked very different.
That's why you can compare seasons among coaches from different programs, roughly at least.