This is a story that I had assumed was fabricated from a social media poster and was a nothingburger.
The explanation seems to actually make things worse. The guy who is in his 9th year as a head coach who prides himself on getting the details right just happened to not know the summer progression for acclimatization this year? But he did it right all the previous years? And somehow no Hall of Fame Head Coach, principal, athletic director, athletic secretary, varsity assistant, sophomore head coach, freshman B coach, or parent looked at the schedule and said "hey something is not right with the schedule here. This is different than year's past. Why is this?" If anything, the equipment manager should know it too. And they have to have at least 20 plus coaches between all levels.
I have been involved with programs where everyone from the varsity head coach down to the parent assistants on the youngest pee wee team in the town all follow the same IHSA acclimatization policy, they all know it, and many would raise a question if it were changed.
But the best football program in the state of Illinois doesn't have people who would catch that?
I know it isn't a substantial competitive advantage and as such it's just met with a yawn as it should be. But absolutely nobody should believe this was just a simple oversight. It had to be purposeful and intentional. For it to be an "aww shucks we didn't know" just isn't remotely conceivable when there are that many people widely regarded as hyper competent and aware associated with that program.