Also they will never open up the blob. Leaving in a huff or what's you point?
You might be surprised but NVIDIA does not provide a Linux driver for 'desktop Joe'.
It's not because it's a passion for them to "support" Linux. There's significant money
in CAD, medical applications and in particular HPC.
They won't leave the field - to some extend they are dependent on Linux.
If at all, some people "fear" the DRM hell. (Which holds for Windows and Mac as well.)
Maybe this already answers your question.