The sad reality is that younger folks are too busy learning JS and backend devs just don't understand it. I've yet to learn new CSS patterns from anyone I've worked with in front end in the last 6 years. On the same note, I've worked on a few teams that have made backwards decisions and have chosen dead tools instead of embracing new CSS patterns. I think I have to take Ana Tudo, Lea Verou and Rachel Andrew for doing enough advocacy to keep my skillset relevant.