JJ is listed anywhere from 195 to 205, my guess is he is 200lbs at least, he is also much stronger than Olave.....Tyreek Hill is sub 200 but is also only 5'9" and very stout. Diggs is just under 200 and much stronger than Olave. Some guys like Steve Smith and Joey Galloway were sub 200 but freakishly strong, Olave clearly is not.....
I never said size/strength are the only factors but they are definitely important.....With Olave, I think he is just not as dynamic as the other guys listed because of that physical limitation.....otherwise he has all the same great WR attributes.....