I wouldn't add any music, professionals or amateurs, doesn't matter.
If you write a poetry book review I suppose you do understand or feel the poems, even if you don't like them.
I don't compare this youtube person with anyone, why should I?
That he don't show himself is totally natural to me. It's about the words, only.
Is it selfish to show yourself in a short video like this? I'd call it idle, not selfish.