Totally agree, but how often is the young coworker using the hip new language in their position because they were told learning it was the key to getting a job in a competitive market and it is what they have to fall back on?

Somewhat similarly, I feel like the boring/mature infra often gets ripped up in favor of something hip and new by a CIO who wants a career checkmark that they "modernized" everything. Then they move on to the next company and forget the consequences of breaking what was stable.