He is not a #1 WR...and even Smitty said that himself.
There are many receivers in the NFL
90% is pretty much top 30 and Smith is still top 30.
And, if 30 WR's is 10%, then there would be 300 WR's in the league. With 32 teams, that is nearly 10 WR's per team. And Sunshine, there are not 10 WR's on every team.
Guess that complex math (you know simple division) is not your friend.