That guy does troll a lot; however, it's hard to deny that Dez has not lived up to the contract or to his talent level. He has some issue every year (dehydrated repeatedly, injured due to holding out, out of shape, out of control during games, off-field distractions to himself and the team, should have known that securing the catch in the GB game was the most important issue, gets shutdown when CBs get in his head, does not know the scheme in great detail, often ran the wrong routes and got chastised by Romo, not a great route runner, etc.. One of the worst, but never mentioned was that in the playoffs from the 2015 season, he ran out on the field while the Cowboys defense was on the field to protest some call. He was incredibly lucky that was not called because it was in an critical situation.
Sure he has some plays and some games where he looks great, but there has always been a lack of consistency and fans/coaches just hold their breath waiting for the next disaster.
It's like my golf game. Sometimes I'll drive the ball 320 yards down the middle of the fairway like a Pro, then the next shot I might hit it in the creek. It's pretty much wow, yuck, wow, yuck, yuck, wow with little in between.