Perhaps a key difference is that OSHWA isn't authoritative. OSHWA are the FSF of hardware. As far as they're concerned, only their certification constitutes op

Perhaps a key difference is that OSHWA isn't authoritative. OSHWA are the FSF of hardware. As far as they're concerned, only their certification constitutes open hardware. Everyone else is wrong. Sound familiar? As someone else pointed out, a lot of people don't provide BOM files, including people who have OSHWA certified hardware.