I'm always nervous about companies like Intel doing both hardware and software. If you do only hardware then you need to keep it simple or else software people won't use your stuff. If you are playing both sides then you can throw engineers at the problem and make it as complicated as you want. In this case they can just push complex AVX512 code into projects like glibc and bypass the whole "is this really worth the complexity?" discussion.

One related example is Intel CPUs having good cache-DMA integration but this not working across NUMA nodes. Ideally Intel would improve this feature to be NUMA-aware and everybody would be happy. However, it seems like they decided it would be cheaper to send forth an army of software engineers to put NUMA-scheduling kludges into a few key projects like Kubernetes and then call it a day.

/rant!