It is harsh. I was speaking relative to NFL TEs. As a college TE, terrible is hyperbole. He can stalemate safeties and small LBs. But he doesn't look to finish guys, is hit and miss blocking on the move, and cannot handle a 3-4 OLB or 4-3 DE. I wouldn't trust him against a bigger off-the-ball LB either. He just doesn't have much power to his game.
And that's why it shocked me that he was bad at it, didn't have the mentality, and didn't show the power. Y'all are welcome to hope for the best, but I'm being straight with you. There's a reason that there are so few TEs in the NFL who are both legitimate inline blockers and legitimate receiving threats. It's a fairly rare skill-set. It's more common today to have specialists. Hopkins seems like a specialist to me, a slot TE who can block enough to handle a DB or undersized LB when flexed out.