I wouldn't characterize it as thought-provoking or inquisitive. They criticize the music as if they are an royally appointed arbiter of good music, but never get to the heart of what they are actually criticizing, only remarking that the music is no longer popular and that it is not to their taste. They leverage this criticism of it not being to their taste to make the judgement that it not age well, as if they are making some universal self-evident observation, which I found absolutely tasteless and unconstructive. Given the down votes others may have felt the same way.

Thanks for the response. What I appreciated about their comment was that they framed the opinion as such, e.g "I always felt like Django's music aged quiet poorly" or "Rag time, a very popular style for a couple of decades, gives me some enjoyment but mostly as a curiosity."

But then OP gave an example of another artist where they felt like there was a stark contrast. That's interesting to me, because I don't know who Harry Smith is.