Too much emphasis upon entertainment is wrong.

Why? Do you have a logical argument to support this, or is it some puritanical objection to getting enjoyment from folk music?

Nothing wrong with entertaining but when no one but the performer "has" the song then something is wrong.

leaving aside that the first part of this sentence contradicts your previous statement - wtf does this mean?

Ballads have two functions- they preserve a story, a history and they entertain. Both need to be served by our work.

The ballads are safe. They have been collected, recorded and analysed. You can be assured that should a new one be discovered it will be added to the collections. You need not fear the ballads will be lost.

Getting people to listen to them is another matter. For that to happen they must be entertaining, and to be that they should be performed by someone who understands the story and how to get it across. That is "our work" - what's yours?