This is one of the big challenges for everyone -- is "majority rule" (ie listen only to what the OEMs want) the best way to run things ? We don't think so but practically speaking it's where you have to start.
It sounds to me like the strategy of AMD with regard to open source, DRM, etc. is going to evolve in response to customer demand (where by "customer" I include OEM of course).
Not as much as you think. The problem has been figuring out how to deliver what you want without putting the rest of our business at risk. What you've probably seen over the years is that as we get bigger we are able to listen to more points of view and factor them all into our planning, and now it's your turn.
I wonder what sort of process you can use to hear back from the open-source-using customers. I know that you have strong communications channels with OEMs, of course, and through your end-user support process you probably get feedback from proprietary-driver users, but I suspect there's a communications disconnect from the open-source-using customers (like me) to you.