> If Microsoft’s stance on this issue is not reversed it’s possible we will see a spike in sales by manufacturers such as System76 and ZaReason who ship computers running Linux out of the box without any signs of Secure Boot at all.

Come on. I prefer BSD based OSX and Linux myself, but to think that a large enough number of buyers care about Linux support to "spike" sellers is just silly. It's done well on servers, but it's a very small market for consumers. Not to mention Ubuntu and RedHat are compatible, so it isn't even an issue for some of the biggest distributions.