I only (slightly) disagree on a couple of points...
First, results matter BUT YOU CAN COMPENSATE FOR LACK OF RESULTS if you have a compelling narrative to sell and a lot of personal charisma and credibility. I believe this is where Mario succeeds while Slingblade Billy fails, even though the first two years of results are very comparable (even if the direction from Y1 to Y2 is different).
Second, I do not necessarily think it was just one play or one corch that ruined this recruiting class for y'all. Slingblade Billy had a lot of momentum in the summertime, but I think it's hard to maintain that same intensity for 6 months when other schools come on strong. Certainly, Slingblade gave his full attention to Lagway, but you can't do that with 20+ recruits. And I warned The Gator fans about what would happen once the recruits started taking other visits.
Now, even IN SPITE of what I just said, I can also acknowledge that all of these factors blend together and interact. So, yes, maybe beating Mizzou starts to help in some other areas. But I don't think that beating Mizzou would have prevented Filsaime from flipping, in and of itself.