Its not nostalgia, its facts. I agree with a lot of what you say about Fran's skills and abilities as a coach. I think he is a great coach. But, this is a results oriented business and the results clearly show that Davis was a more successful coach. Objectively.
Look, there are many ways you can define the success of a coach. Overall record is important (BTW, Fran has two more years at Iowa, so not too shocking he has the all time win total), conference finishes, etc. But, I think most of the sports world ultimately judges a MBB coach by his NCAA tournament record. You cannot put these two coaches side by side on their tourney resume and conclude anything other than Davis was a more successful coach. Focusing solely on one season where Davis inherited a great team is just a way to distract from the total resume. What did Davis do that discounts him getting credit when he made it to the other Elite 8, or the three Sweet 16s, or the 7 first round wins? On the flipside, I guess Fran the Amazing is just the unluckiest tourney coach ever? Come on. These gents both had long careers and their tournament resumes speak for themselves. Gloss over the facts to make your point if you must, but the facts are what they are.