While being paid by IHVs does give them some conflicting interests, you do realize that NVIDIA is paying them, don't you? See big fat NVIDIA logo here
. Yet that obviously hasn't stopped Futuremark from not certifying NVIDIA's latest official WHQL driver, 53.03!
It's there benchmark. Why shouldn't they be able to make rules dictating how it should be used properly? It's like getting a paycheck, cashing it, and then being told that you can't buy cheese with your money. It's your money; you can do whatever you want with it as long as that fits with the intention of legal tender.