It doesn't make anything new or fresh. It doesn't pull any real-life emotions or experiences into a synthesis that a person can relate to. It's more like asking a teenaged comedian to imitate numerous impressions of music styles. e.g. in Clerks when the Russian guy does "metal": https://youtu.be/7gFoHkkCaRE?t=55
Of course the modern conception of music in the West is as an accompaniment to other, mostly drudging, activities, as opposed to something to be paid singularly attention. Therefore, there are many "valuable"(*) occasions to produce "impressions" of music. E.g. in advertisements and social media flexes where identity and attitude are the purpose of music. For these, a shallow interpretation or reflection of loosely amalgamated sound clips will suffice. But we don't just attend concerts or focus sustained energy on sonic impressions. We listen to lyrics and give over our consciousness to composed works because we want to find secrets others give away in dealing with this crazy thing called life- ideas to succeed, admissions of failure, and what the expected emotional arcs of these trajectories looks like. This lofty goal is to date not within the scope of AI stunts.
As Solzheinetysn said, "Too much art is like candy and not bread."
As to why, music is fun to create, and this is just a tool.
You'd have to combine it with these guys https://www.youtube.com/watch?v=WqE9zIp0Muk
I did.
> The future seems depressing when I look at all this AI generated art.
You should talk about your concerns with an AI psychotherapist.