I don't remember that. Maybe I'm bad at Google searching, but among the articles that actually had Fitz and McCall quotes about the QB battle, all of it seemed pretty generic and not singling out one guy or another.
"They all have some good things they've done, some spurts they go through and then something [bad] will happen. It's more about how they respond to certain things." - McCall
“All three guys have had a good summer from a leadership standpoint. I think they’re all in really good shape, and now we’re going to roll the ball out and let it play.” - Fitz
https://www.espn.com/blog/bigten/post/_/id/116633/northwestern-looks-for-answers-at-quarterback
https://dawindycity.com/2015/08/03/pat-fitzgerald-no-decision-yet-on-wildcats-starting-quarterback/
Again, I side with you that this is all misdirection, but I am just pointing out that this sort of targeted public critique seems unusual.