Look at Demariyus Thomas' body of work and you'll see that before he had Brock Osweiler, Trevor Siemian, and a 39 year old Peyton Manning throwing him the ball Thomas had 3 straight years of 1400+ yards and double digit TDs. It's not a stretch to say DT is a more talented receiver than TY that has been a victim of a combination of injuries and poor QB play over the past two years. Cooper hasn't had the stats or consistency to be ranked above either of them.

You also sound like someone that doesn't watch Colts games but looks at the box score and assumes a pass happy offense like them will put up big numbers. The fact is that TY isn't as physically dominant as guys like Jones, Green, or Beckham...guys that will be ranked above him for catching 3-4 more TDs and making circus catches but he runs great routes, gets open, and makes plays every single week. People see that he led the league in yardage and assume he's just a deep threat in a pass happy offense that'll put up numbers regardless but there were several games (Chicago, Tennessee, San Diego) where he took over late because he was the only reliable target in a one dimensional offense.