That assumes that the sponsors don't distribute operating systems or devices containing them, only services in the cloud (or user-space software). And even sti

That assumes that the sponsors don't distribute operating systems or devices containing them, only services in the cloud (or user-space software). And even still, they could re-distribute the grsecurity code if they wanted to. But they probably won't bother. So yes this private-patches policy will have a big impact on availability, at least on convenience.