Gronk has ran past plenty of people and he only ran 0.02 faster at his combine. He also ran a 7.18 3-cone (again, Hock 7.02). I'd say Hock projects pretty well to that level of athleticism and maybe a bit more quick twitch. Gronk did have 23 reps compared to Hock's pretty meh 17 reps. If you want to criticize something, I'd start there - at least that way you'd be accurate.
This isn't really directed at you, just a general statement.
The bench is so overrated in terms of analyzing functional strength. I would much rather use lifts like hang cleans or squats to analyze strength, especially for run blocking.
Take Hock for example, as a TE, he will rarely pass block. So his anchor and punch is not as important, right? He's going to be driving forward and torqueing guys out or down. That takes leg and core strength, which a bench press does not account for. Technique is also a huge, huge part of it. You can be as strong as Samson, but if you don't have the technique, you will struggle blocking. Iowa is renowned for their blocking technique, and it shows with Hockenson (and Fant for that matter). Watch two minutes of Iowa tape, and you'll see Hock pile driving DE's into the ground or out of the play. That translates. Technique always translates. You can see he has tremendous core and leg strength, which shows up in his jumps too. It's all torque!
Long story short, using the bench press to say this guy won't be able to run block is extremely disingenuous and faulty. Run blocking is the last thing anybody should be worried about when it comes to Hock.