The difference is Cooper has had pro bowl seasons. Watkins has been a bust as a top pick, for whatever reason you want. Certainly not apples and oranges. Watkins has done little in the nflI’m happy with Cooper over Watkins but it’s really apples-to-oranges comparing the two.
KC’s offense goes through Kelce (arguably Hill) while the Cowboys brought in Cooper to be their #1 receiving option. The numbers and usage rates are obviously going to be different.
Another homerfied fluff piece brought to you by BtB.