I think you're assuming a level of Unix knowledge that less and less new people in the field are going to have.
Kids today no longer know the shell. They think just writing some yaml files in ansible is sufficient. Giving them a shell script won't help at all.
Sounds like Kochan and Wood[0] need some love (and royalties).
Or is learning stuff deprecated these days?
[0] https://www.amazon.com/Unix-Shell-Programming-Stephen-Kochan...