He's another product of Greg Roman. I seriously doubt Shanahan would do something that stupid. If he wanted running QBs he could find one in every draft without taking one of them high.
Now Aaron Rodgers to SF would scare me. But outside of that there's a whole lot of fear around what SF is going to do that is way over the top.
Garoppolo is a known quantity as a lesser tier signal caller. They won't get any real value for him unless some desperate team like the Bears get stupid. Now Shanny is so good that they can challenge in the playoffs if they get the roster right even with a crappy QB but their Super Bowl winning hopes hang on them hitting on a QB choice in this draft.