Interestingly enough on the Debian list there is a post who says he has
run a specific Debian stable..for 20 years.
They posted asking about Debian additions, but reading your post about clear
Linux is why they decided to stop?
Especially with a supportive community?
If I had to speculate, it is because Intel is going through a rough patch and that they are not in a position to support paying someone to work on this project. It is an open source project, so anyone who does care about it is free to fork it and continue maintaining it.
Dhaval