If that is the case then terminating Clear Linux as a distribution might be the responsible thing if they were the source of direction for the distro. This was also a PoC distro as opposed to seeking enterprise workloads so it also seems reasonable that after the innovations that were good were adopted by more mainstream distros they no longer served a purpose.
I still expect to see a steady stream of kernel patches for new chips and features. I just would place headcount loss and accomplishing everything they set out to do with the distro over FOSS malice. Unlike many of the ghosts of malicious corp open source this doesn't fit exactly in my view.
Stuff like clear linux is sprinkles on the sunday, if you don't even have the ice cream it doesn't matter how good your sprinkles are.
Clear Linux itself is afaik irrelevant it is a vehicle for getting their code for optimizations developed and out to make FUDish claims that maybe an AMD won't be as good for your workloads, etc.