IMO ’Prompt engineering’ is an implication that the LLM:s are really immature technology. There is no intrinsic value in prompt engineering - it’s ok to wait a bit until LLM:s get a proper product shell you don’t need to walk on eggshells over. I would not promote LLM:s as production ready offerings until this aspect becomes better.
Using an LLM is like having a therapy session - where you the user are the therapist. Humans should not need to learn en masse become AI therapists, that’s a the inverse of what should happen :D