Here is an article with quotes from Lou Holtz and Gerry Dinardo. Both won National Championships with the option and both abandoned it in the early 90's. Check out their quotes as to why they quit running it. Pretty straight forward.
Thanks for the link. Under Johnson, the offense still works at this level and contrary to expectations, the recruiting has gotten better. None of the experts in that article discuss how your defense will get worse if you have an option offense, but I guess that's part of what "everybody" else was saying.