Re: "Every generation is better than the previous one. The game is always evolving"
What we have seen is that the early 2000s did lift the game (yes they got help from better strings, better training techniques) but that's besides the point. The point is they did. And something this generation hasn't been able to do. So the Gold standard is still that generation.
But again, by that logic, Stosur HAS already "lifted the game", because she IS better than anyone before in generating topspin
And, as Moby says, even if her gamestyle doesn't become more common (because it might turn out no other woman can produce as much spin as her), then it would STILL count as an advance for the game by your logic, because no women have managed to serve as well as the Williams sisters either.