Lock is not going to shock us, I don't think if I've ever seen a more skittish QB. Lock, in fact is the goofiest looking QB i've seen play the game. He looks like giraffe on ice skates when there is pressure on him. Hit him once and he completely loses it. I don't know if I've ever seen a skittish QB buck that trend. Maybe Hasselbeck is the last one I could think of, but he was a system QB working underneath one of the best QB gurus in the NFL. Even still, he would have at least a few WTF moments a game.
The thing about Lock is he has not seen much improvement as a passer since he's been in the NFL. Going by averages, it's more likely that he stays the same guy rather than improves. He's just the latest Sam Darnoldesc reclamation project. I expect similar results from him, Darnold was slightly better, but still pretty bad.
I don't think not taking a QB is necessarily an endorsement of Lock either. It's more of an indictment on the QB class. I watched a lot of QB footage and they all bad massive flaws, with the exception of Kenny Pickett.