Some people are really bad at specifying what they want to ask for. Or they already start prompting with the attitude that it can't possibly work so they don't even really try, or stop at the first failure to point and say how bad it is.
It's the famous "email broken, fix pls" but in the form of an LLM prompt.
I don't think this is just about intention and willingness, it's just simply hard.
It can be frustrating to observe people interacting with these things. But it was just as frustrating 20 years ago, so maybe it's just a constant.