I notice that once you're invested, time and effort wise, in doing something one way, and it works, the general unwillingness to learn different or newer ways of doing the same things increases rapidly. Overcoming such prejudice requires understanding and accepting the incentives for further investing time and effort to accustom with newer technology.

Use-case driven technology fit is just one incentive. There are other incentives like resume enhancement, participation in communities where there is rapid development, FOMO / fear of being a dinosaur, the reputation of being known as someone well versed with the latest technologies, monetization via online courses/tutorials. These are just a few I could think of, I'm sure there are more.

In my relatively short career, I saw this playing out with NoSql databases, microservices architecture, SPA (AngularJS), NodeJS, responsive websites, blockchain and more recently, ReactJS, data-science (AI/ML) and containerization.

Each one of these, at some point or the other, have been used in cases where the problem space was completely solvable without using said technology but was introduced for some other incentive.

Say what you will but this rapid change is what makes and keeps this space moving, interesting, inspiring and well-paying.