I do think if you look at the course of women's basketball, you do see players that herald in a change in playing standards or a change in perception. That is why I mentioned Lobo/Jackson/EDD/Parker and the perception of what a player in the 6'5" range is capable of providing offensively. You look at the men's game and change the height to 7' and you see players like Walton, Novitski, etc. that take a center and turn him onto a 3 pooint threat or an assist machine.
Again on the men's side - Dr. J is the player that changed the perception of what was physically possible and led to a revolution in 'air time'. Not dissimilar to what Diana and Maya have done.
Griner may be a physically unique specimen, but young tall girls see her and the publicity she receives, and they go out and try to copy what she does - it will take some time for those 12-14 year olds to emerge, but ... dunking in the women's game will become more common and more effortless. Just in the way we are seeing players now emerging that watched and tried to copy Diana, or will see players that watched and try to copy Maya or Parker or ...
With women's basketball we are also still in a certain infancy, so the players that get national spotlight attention and bring viewers to the game are also 'game changers' in a real sense in that they expand the footprint. Sue Bird is a great point guard, but hasn't changed the perception of what a point guard should or can do, but she also happens to be beautiful and has been in the spotlight during a big expansion in national 'attention' and has helped to drive that. ( Same could be said for Diggins after last year's final four - she may not be the best guard in the college game, but the mixture of beauty and skill is an attention getter.) On this line, think of the goal celebration of Brandi Chastain - a woman taking off her top and revealing her sports bra - not really very 'racy', but it was all over every news outlet in the world - didn't change the game at all, but it did change the perception of the game and was in part responsible for women's pro soccor. ( so sad that the plug has been pulled on that.)
And finally - probably the biggest driver of perception over the past 15 years is the rivalry between TN and Uconn. People may only have watched one game a year, but that game Uconn vs. Tenn became 'must see' both because it was always fierce, but also because it was Geno vs. Pat.
Finally - women's basketball as the most consistently televised women's sport is changing the national perception of what being a girl can mean. It wasn't that long ago that sport for girls was seen as a help to posture and deportment, and actually sweating was frowned upon. So WCBB in itself is a 'game changer,!