While I won't endorse what the GP said, I wouldn't say that it's only gotten worse. I work for a modern gpu company (you can probably figure out which one from my comment history) on one of the modern apis and they much more closely represent what the gpu does. It's not like how opengl use to be as the gpus hold much less state for you than they use to. However with the new features being added now it is starting to drift apart again and once again become more complex.