People go through all sorts of weird mental gymnastics about this. The FSF at one point took the position that binary blobs were cool so long as they could not be upgraded, because then you could pretend they weren't software at all, but just part of the wiring. I've seen this odd line of thought attributed to RMS himself, but here's an FSF statement, from when he was running it: https://www.fsf.org/blogs/community/task2-openmoko