We can guess - the blob wouldn't be in the kernel, and the interface to the blob would reluctantly be added (or not added at all) and the installer would work against particular kernels.
I care. It's kind of strange if you're against undocumented software but still run on undocumented hardware. I'm hoping the providers of the tools I use can see this too.
Hardware doesn't change. The Linux kernel and related userspace move fast. Proprietary kernel drivers are painful for users and developers alike. Nvidia has held back the entire desktop and been a massive PITA for laptops.
