Six Moons is eccentric - not AI.
I would have to agree though that writing is deteriorating in general across the internet and in print media as well, and for obvious reasons - literature is not taught with much inspiration or confidence in the schools; and the vast majority of graduates do not care to luxuriate in language as in the days of old. It's all visual media now.
My daughter is a copy editor for The New Yorker online and she knows her stuff, but she was raised in a household that liked to read and liked to listen to music too.
Writing well day in - day out is a grind. It requires a pretty fierce work ethic to do it well and the assurance that there is still an audience capable of appreciating what you are up to.
The other problem is the pace of the modern workplace which is too rushed for anyone to catch a breath. It shows in the writing and the poor editing too. You can see in so called "major publications" awful, derelict editing - errors that any junior high school teacher would mark in red "careless error!"