Most of that page is dedicated to how "nicely" that farmer treats his herd. But, there are a few omissions.
How do they care for cows that are no longer capable of becoming pregnant? [0]
How do they control the size of the herd when each cow is giving birth about 3-4 times over a 4-5 year "lifespan?"
Even at four times the cost, the industry doesn't look any better.
[0]: https://www.agweb.com/article/deciding-when-dairy-cow-starts...