I think his body type is confusing people, because he looks more like a RB than a WR and they have hard time projecting him because of it. Try to ignore his bulk for a moment. Think of him as an averagely sized WR for his height. Imagine he's 195lbs instead of 215... Imagine the same quickness, same route running, same ability to break tackles and gain yards after catch from the slot and same game breaking long-catch game. What do you see? Now add 20 pounds on top WITHOUT subtracting anything for it. Don't punish him for having a weird body type. He does what he does well with this body type. I don't think it's hindering him in any specific way. If anything it's probably helping him break tackles. He's not particularly shifty but that's not something out of the ordinary for most receivers. Not everybody is Parris Campbell. At least he has his bulk and explosiveness to gain YAC in different way than just making people miss by shiftiness.
but you also said he was rated higher in 2017 than 2018????
having a career year in 2018, but rated higher in 2017 is not computing with my old brain.
and wasn't AC out in the beginning of the season?? not sure that you would expect a line with an injured starter, plus two new guys to play well regardless. and smith wasn't even starting until like week 5 or 6, and that was at RG. Then moved to RT around week 8 or 9. the OL was a work in progress the first half of the season. not sure you can say AC was thing that made them good all of sudden. kelly was banged up early too.