The last-mile problem applies here too. GPT-3 text is convincing at a distance but when you look closely there is no coherence, no real understanding of plot or emotional dynamics or really anything. TV shows and movies are filled with plot holes and bad writing but it's not that bad.

Also I think "a good algorithm" is more than just repetitive content. The plots are reused and generic, but there's real skill involved into figuring out the next series to reuse with a generic plot which is still guaranteed not to flop because nobody actually wants to see reruns of that series or they accidentally screwed up a major plot point.