It's basically a way in which already delusional people are further deluding themselves that writing a part of a sentence while interacting with a black box is engineering.
You'll find these specialized positions working with AI as well soon.
We can deride it from not being "traditional" engineering, but engineering as defined as "doing the best you can with tools you have", certainly allows for a prompt engineer to be defined..
This is not a definition of engineering anyone sane holds. It's so broad it can be used to define a floor cleaner as an engineer (or, if you want higher tech involved, a floor cleaner with a roomba).
This is not logic, this is travesty.