Although the article purports to be a comprehensive look at SU's and Dino's relations with New York State football programs, we all know the centerpiece of the article (and what will be remembered) is the epithet aimed at coach. Any other interpretation is naive. If that quote didn't exist, the article probably never sees the light of day. The writer had the quote and fleshed out the article with other innocuous stuff. In any event, the DO is primarily a short-reach campus organ for the development of undergrads.
Additionally, P5 coaches and HS coaches are technically in the same business. However it's like the kid who drives a go-cart and teaches Social Studies on the side offering advice on how to maximize his engin to a guy who owns a Formula 1 race car.
Just my arm chair opinion here, but Fredericks was a talented runner who had difficulty (I surmise) pass catching, calling out plays at the line and pass blocking. I'm sure coach took corrective action to improve these areas and when improvement was not manifest he went with more reliable Strickland. He didn't want to have some time-sucking, amiable discussion with a HS coach (however well-intentioned) about a matter on which he's already decided on. If you do start having these discussions it's "Feed the cat once and..."