WHich bring up another angle. It's hardware. I doubt Intel has any 'obligations to others' as far as making a detailed description of the hardware workings available. This would allow someone to write GPL firmware.
You're being stupid. Even though that would be a good thing, if you would RTFA, that isn't what this is about. OpenBSD wants _freely distributable_ firmware, _not_ source code or anything else related to the firmware architecture.

So, that sounds more reasonable. What could keep Intel from doing this?

In short, there are a myriad of reasons why Intel would say no. If this is a problem for you, reverse the hardware and produce a free firmware, or make noise && vote with your feet.

Score:4, Insightful