Depending on who you ask OC is basically a myth, and everything is just fanfic expanding on base archetypes and themes anyway.
The Romans literally copied Greek statuary, and nobody questions the virtuosity of neo-classicists even if their work is "just" Greco-Roman fanart.
Most art is memetic in some way, making it accessible and engaging to a large audience and reducing the amount of exposition and context needing be communicated. Ironically, art that doesn't do so is often criticized for being inaccessible, elitist, or "something my baby could have done".
Telling artists what art they should make is silly outside of commissions to begjn with.
I agree with his points, but until such a time when we figure out how consciousness arises in biological systems it seems difficult to be sure that creating an artificial consciousness is actually impossible.
Of course such a thing would likely be orders of magnitude more difficult than an AGi and we're much further away from that than people want to believe. Building an artificial consciousness seems like far future sci-fi to be sure.
That being said, I think it very unlikely such a thing would simply be an algorithm, but there's more to science and engineering than CS.