Anti-Gronk eh? Let's look at a few data points.
………………………………….Rob Gronkowski.....Mike Gesicki…..Jimmy Graham
Bench Press...……………………….23...….....…...….22……………………(Less than 19)
40 Time...…………………………….NA.(~4.6)..………..4.54*...……………...4.56
Vertical Jump...…………………….NA.(~35)..……….41.5*...……………...38.5
Broad Jump...……………………...NA..………………..10.9*…………………10.0
Three Cone...……………………….NA...……………..…6.76*………………....6.9
Short Shuttle...…………………….NA...………………..4.10*………………….NA
Long Shuttle...……………………..NA...………………11.33*………………..11.76
Note: * represents a category where Mike Gesicki was the best TE in his draft class.
Data obtained from NFL.com here:
http://www.nfl.com/combine/top-performers#year=2018&workout=FORTY_YARD_DASH&position=TE
We know that Gronk is a physical freak. And he has size. Gronk is about 6 foot 6.5 inches tall, and Gesicki is 6 foot 5.5 inches tall, so yes, Gronk has 1 inch in height. And yes, Gronk benched 1 more rep than Gesicki. But to call him the anti-Gronk is simply not accurate. They are comparable physically, with Gronk being the more powerful and slightly bigger guy but with Gesicki being faster, more explosive, and better jumper. The biggest play difference is that Gronkowsi is an exceptional blocker in the run game and decent in the passing game, and Gesicki is not good in either aspect of blocking yet, and may never be. But as a receiver … yeah, you're incorrect to call Gesicki the anti-Gronk.
The kid had a decent rookie season … but you were expecting instant-HoF'er … sorry to surprise you, but almost no TE's are instant-HoF'ers as rookies … least of all ones on teams with epically bad offenses like the 2019 Miami Dolphins.
Give the kid a chance … he's going to become a good NFL TE.