Honest question, you also believe flat earth society claims?
That thing was one of the most ridiculous tech related things I read on the internet (at least for that time). A person who has no idea how things work spouts random stuff, and people believe him. It was funny, because watching trolls is. But taking it seriously? Nah...
There wasn't even one reputable person/company who said "yes, he's right". In fact iirc AMD released some statement later on in which they said that this is a good benchmark. Or the plot thickens and AMD were paid off?
After giving the matter some thought, not only their implementation gains performance on AMD hardware as other titles, but it's also beneficial for NVidia. And all that without vendor specific code. Quite impressive, don't you think?