@lanodan Yes, the FSF endorses peripherals with proprietary hardware, since that hardware can be used with only free software without having to agree to any proprietary software license, or provide any proprietary software.
All hardware is unfortunately proprietary and so the FSF had to choose between endorsing *nothing*, or some hardware with no software freedom problems and some computers with the minimum possible (only temporarily as well).
The best way to be snarky is to start the Hardware Freedom Foundation, make 100% free hardware and then recommend that - you can be as snarky as you want then.
There still is true ROMs today but engraved with things like a CPU (or on the FSF endorsed peripherals…).