You're absolutely right, HOWEVER, I would call that the exception rather than the rule, as IIRC it was largely due to AMD supporting some operators in a more native/optimized form than Nvidia did at the time, than any sort of true general purpose superiority. Given how quickly mining moved to ASICS I wouldn't use that as an advocation that they're (ASICS) superior to Nvidia for GPGPU functionality. (Special-purpose specially-designed, no doubt, but that's not really "General")

Edit: read a sister post later article on the breakdown of the perf differences, and it seems to slightly affirm what I'm saying (re: bitcoin aligning with a functionality AMD performed very strongly in), although I'll admit to have only skimmed it.

I will say though, even despite this, it doesn't address the known heat/power issues even the "heyday" amd cards seemed to suffer from and that were still present when I was comparing them while looking at a 1070 recently.

EDIT: since I can't edit my original post any more, I'd note here that I didn't intend to turn this into a NVIDIA/AMD debate, even if we ignore that for a moment and consider it a duopoly situation instead of monoply, I'd ask readers to consider my core point in that light.