Is this just because the newer cards are so new, or will there never be drivers released anymore? That's a bummer. And makes me feel slightly more confident on going back to Windows from Hackintosh. It likely wouldn't affect me for a few more years, since this 970-based, Intel gen 5, desktop that I built up a couple years ago, still has plenty of longevity left in it.

I think what he's trying to say is that you're stuck a generation behind in GPU's - for example there are no Pascal drivers for Nvidia.

For anything earlier, Nvidia periodically releases drivers about a month later than the OS version bumps. There are drivers for 10.12.4.

That's it. With any future releases being under a dark cloud of doubt.

You still need to update them in tandem with OS updates, but your point is well taken.