He certainly was when he was in his prime/age like those you have listed. Let's see if your top 5 STILL play lights out at the age of Witty, 35yrs old. The man has ELEVEN pro bowls under his belt & STILL going strong.
Your top five are far from being realistic. You don't even have one of the most underrated and best TE's to ever play the game listed. Tony Gonzalez. Which has 14 pro bowls under his belt. Received his last one in 2013, the year he retired at the age of 37.
Those so called top 5 combined probably won't even earn as many as Witty let and Gonzalez. Witty's not even retired yet. That's 25 Pro Bowls combined by only two players.
They just don't make them anymore like they use to.