To elaborate/explain on this point for those less familiar: those three cryptocurrencies actually are based on real technical innovation, and have developer communities producing more technical innovation. There are many other cryptocurrencies that have zero technical innovation (or completely nonsense innovation) and are merely clones of previous cryptocurrencies with some identifiers tweaked, made purely so investors can pump and dump.
The article in part 5 ("The decline of Maximalism") seems to be criticizing the idea that people would prefer some cryptocurrencies to others, which is completely ridiculous. There are real differences / issues with many.