It did work for his clients. It's clearly stated in the Blog. He's recommending highly rated (his rating) oil
and aftermarket additives for cam survival. He has many examples of engines finishing races intact using his recommendations. That's what he does.
His numbers mean something to him, and as a back-up to why he recommends a certain approach to race engine failures.
Do they mean something on the street - not a great deal. But I'd happily use any of his top 1/3 the list rated oil in a vehicle where they fit the requirements.
And, as drag racers reach for ever lighter oil to wring that last 8 HP out of these things, his shift in viscosity means something there too ...
Are his numbers meaningful to us as an absolute, or even a relativistic exercise, - I don't think so ...
Is his overall approach useful for street engines - not really ... He does on occasion recommend chlorinated additives, which have no business in long change interval lubrication schemes (street).
But, it is interesting how oils perform on his tests
And it's an approach that opposes the oil companies who don't provide any sort of rankable performance data ... We do know that there are good, mediocre, and bad oils. Even PQIA knows and supports that (good/bad).
What's interesting is to take his "data" and compare products at PQIA. Some patterns seem to emerge.