Does this prove David Vizard's 128 lsa formula ?

I tend to agree. It's simply physically impossible for one formula to optimize every single combo out there. It's just not happenin. Also, I believe the only real test for verification is either the dyno or the drag strip. Other than that, it's simply an educated guess.
What's lost in all of these drive-by/sound-bite takes is, DV clearly insists that every individual combo needs to dial the cam adv/retard on a dyno(or track testing if poss.), no matter what. Unless it is a known replicated combo already proven, it must be done, period.
It's not the easy answer everybody wants, but that's what it takes.