This is a fun exercise, but I think the original shows awareness of the more obvious advantages (things you can tell by looking at someone- e.g. looks) as opposed to things you’d need to know someone to know about (e.g. – intelligence, wit, skill) that Jolene had over the singer or it show Dolly’s insecurities.
Rather than being a showcase of the literal things that a person “should” be looking for in a mate it shows what Dolly was insecure about and in doing so touches us wherever our own insecurities lie.
That’s part of what makes it real and not just a writing exercise.