Your argument is so well thought out. If you don't have all of the god given physical tools, you're a #2.
Guess what makes you a #1 receiver? If your the best receiver on your team.
He ranked 17th in yards last year among a list that includes tight ends. If you just say each team has 3 starting WR's and one TE, he ranks 17th out of 128 starters in the NFL. The simple math says if you're in the top 64 you're a number one, but you wouldn't understand that. But you just keep holding on to "physical attributes" as your argument.