I was thinking along the same line - although in fairness to Dakota, as I understood it Oregon was so crappy early on that the coach decided to develop their young QB rather than play a 1 year transfer in a season that was going nowhere. Dakota didn't play badly.
But that just emphasizes the risk of transferring - even if you can play well enough there are circumstances beyond your control that may make it a worse situation.
What if Cox struggled in camp early on and LSU starts their freshman 5-star instead of him? I don't think that will happen but there is a chance. I believe Cox should have gone to Kansas State. He would not have been screwed there and would have film against Baylor, Oklahoma, Texas, etc type schools and fulfill his dream of playing P5 ball.