The reasons I see us moving away from the option even more than this year are:
1. It consumes a lot of practice time to make it effective. Why do it when it won't be a full time offense?
2. No matter how strong the Qb is, Being an option Qb inflicts a toll on the body. I don't think Beck wants that for his starter.
With multiple skill players on the field I think Pelini and Beck want to get the ball in their hands as much as possible without putting the Qb in jeopardy. Not saying the Qb will never run but I see it a way to get that first down when all other options are closed or there is a break down.
Not disagreeing with your rationale, but the option has been a staple for Beck in his offense since he was a HS Coach. He has been quoted numerous times over the last 2 years that option is something he wants to be a part of the offense as it is key piece of what he likes to do.
Everyone points out what KU did when he was there, but he was the Passing Game coordinator and wasn't calling the plays nor did he have full control over their offensive concepts.