What's the impact? Does the entire of the rest of the universe now get to die off?
Several years ago, I was part of a team that helped AT&T refactor their software they were running with Chef on top of OpenStack, and we were able to cut their codebase to a third of the size it started at, simply by removing duplication of modules and eliminating modules that weren't used. It took our team six months to do that, but we put in place CI/CD procedures that made sure everything still ran and passed all the tests, before we handed over the next batch of code updates.
So, I'm guessing the telco business has moved away from OpenStack and to Kubernetes?
IMO, helping people get the broader perspective of how something like this fits into their industry as a whole, or at least a major sector of the industry -- that's the kind of thing that I find to be much more interesting.