[cuddlybacon]

My gut reaction to the title was to disagree. Looking at the article, the thing that stands out strongest is this graph:

https://tyrrrz.me/static/b606743d039cfb56391c5793d0dda8f2/bb...

It shows test cost vs test isolation. I agree with the assumed correlation. My experience though is the real correlation is above the assumed correlation, not below it. My guess is that the author's organization moves part of the cost somewhere else where the author doesn't have to see it. At the start of my career, I was one of those people who had this cost dumped on them so that the devs could ignore it: I was an on-team QA engineer.