.........there are just more of them now.
Kellen Winslow Sr. was drafted in 1979 and he was a game changer in his day but if you need more recent examples, look at Tony Gonzalez and Antonio Gates.
I realize that the media likes to hype everything as if we've never seen it before but in fact we have. The truth is that all players at all positions are bigger and more athletic than they were 20 years ago. Tight end is not much different in that regard.