Why lay the blame at Nvidia's feet?
I think the reason is largely the practice of utilising tech in a way that hurts performance on both colours - but a larger effect on red so green looks better by comparison. It's anti-consumer and anti-competition, it benefits no body past making green "look" better. That's the biggest issue I have with nVidia at least.
TLDR, they do things to hurt competition rather than improve performance.