Maybe nobody is really taking it seriously. It's been posted to HN like 5 times now and failed to get any traction either.
This whole fiasco is why security researchers are widely seen as insufferable, pretentious and egocentric primadonnas. Responsible my ass. Yeah they gave them heads up, but Redhat and Centos, two major suppliers of Linux server systems in the world, don't even have a first attempt at a viable solution  but security researchers now have their name published.
> Maybe nobody is really taking it seriously.
Redhat is, it has high severity and high priority.