Don't blame him. He will end up being like several players here the past few years and dip heavily due to "fundamentals" and then latch on for a multi-year NFL career due to athletic ability. Callaway was the example last year, Moseley a few years ago, Tuttle a few years ago, etc.
Ha ha, the same guy who coached some of these guys coached the guys who didn't run clean routes and lacked fundamentals to get separation per predraft scouting reports. Those two guys were Travis Kelce and Antonio Brown.