Normally if a work of art has something to say, it will "say" it itself.
If the work of art has nothing to say, than the "artist" will have to speak on its behalf, and the result will be a ridiculous attempt, by the listener/viewer, to retrace the concept in the work. How interesting!
We saw this already in music, sculpture, painting etc. After centuries of good, or less good, or awful music, but music that needed no elaborated explanation, we arrived at Cage, Stockhausen, Nono, etc. who had to "explain" to us what their "music" meant, how it was obtained, how original it was etc.
Cannot write decent music? Don't worry, just talk about it! People who don't like music will appreciate your work, because they don't "get" music anyway, but they might get reasoning and that might make them feel cultivated, culturally sophisticated etc.
Plenty of academic teachers, with no artistic inspiration themselves, will teach their students to produce "concepts", so that they can legitimize both teachers and students as artists.
"Academism" is probably the right term to describe this kind of artistic production.