As the article mentions, it's because Microsoft cut down their quality control to the point where they're just sending stuff out then reacting when people report what breaks. Sure they have their "insider" builds but that program isn't working very well to catch these issues that find their way into release builds.
Back in the day they had a massive testing lab and a big team of testers. Then they fired them all just over a decade ago. We can thank Satya Nadella I guess. He's more of a line-go-up man than a good quality products person.