I'm not going to defend Hundleys mistakes, but he's been in the system for 3 years and they do run the same offense with modifications. Same terminology, same play calls and similar cadence and game plan.Like they have for Hundley???
Would the entire offense not need to change for any new QB to come in and start???
I assume you've seen Kaepernicks success while trying to be anything more than a 1 read and run QB? He was poor at best. That doesn't even take into account all that is involved in acclimating to a new team, new terminology and he hasn't taken a snap of any kind in a while to be in any sort of football shape.
A lot of the issues with Hundley are ones you usually do t see until it's live. I'm sure he looks great in practice, he can drop back and throw. He either can't or doesn't have enough experience to improve upon his ability to drop back, trust what he sees and then throw.