Except... yes, you can quantify the "depth" of a piece of music by what the composer/improviser does with the materials at hand.
The depth of the material itself is a little more subjective, but it's safe to say that belaboring the obvious as an end to itself is swimming in the shallow end of the pool. But a grown man using water wings in the wading pool is hardly gonna qualify for the Olympics.
Do you want to talk music as fact, or sentimentality? I dislike this piece immensely on both counts, but on the factual elements of it's music, I have yet to see anybody make a convincing case in favor of it.
So, let's hear your facts.