I like this theory about limited ammount of possible basic story plots to be told. The rest is using next gen artistic means to convey a story in certain form. This creates illusion of a fresh thing. IMO we are at the end of the cycle, hence we see painful repetition in storytelling industry.
Also, they just feed a hen that lays golden eggs.
There is much more to the story than the reduction to the most basic story points. I know what youre referring to. The 7 basic plots.
There is quite a big difference between "Mandy 2018" and "Your Highness
2011". Yet they share the basic plot.