What the article misses is that medium "failed" to improve the quality of web by making it much worse.
95% of what people want to say on Medium is "Me too".
TL;DR: Medium is a content farm with delusions of grandeur; the content is neither rare nor well-done.
It can be good but quality is all over the place.
Back in the day if you wanted to blog you at least had to sign up at wordpress.com. Medium greased the skids for people who really didn't have anything to say, it is right out of