The aim of all commentary on art now should be to make works of art - and by analogy our own experience - more rather than less real to us. The function of criticism should be to show how it is what it is even that it is what it is rather than to show what it means.
It is a sad commentary of our times when our young must seek advice and counsel from 'Dear Abby' instead of going to Mom and Dad.
Because most of my career in the classroom has been at art schools (beginning at Bennington in the 1970s) I am hyper-aware of the often grotesque disconnect between commentary on the arts and the actual practice or production of the arts.
My favorite laser disk ever was the laser disk for The Graduate which had a commentary track that wasn't even the filmmakers it was a professor some film criticism guy who just happen to be this amazing commentator who went off into the whole theory of comedy.