is that the FSF and the Linux community mocked us, rather than mocking the closed vendors
That's a nice troll, but I've never seen evidence of this “mockery”. More truthfully stated, most people think going as far as demanding open-source firmware is unrealistic compared to the goal of having freely redistribute firmware so that OS installations from a wireless net are possible. I don't understand what problem the FSF would have with this considering open-source firmware would be included in their ideology. And Debian, the largest nonprofit Linux distributor, requires all programs to be open source in order to be in the main archive, and a firmware is a program that runs on a slave computer, so I don't see why this approach would be mocked there either.