First team All-Pro has gone to a future HOFer (or at least an increasingly strong candidate to be one, in Kittle) every year but one during that time span chosen by Kleinman. And, if you count 2nd team, Olsen was a first round pick. So Kleinman really isn't making any point here, really, other than "3 tight ends have dominated the NFL All-pro voting in the last 10 years: Gronk, Kelce, Kittle".