Here's what I mean: the only thing that seemed an actual problem, to judge from the article, is that the on-call rotations became once every three weeks. Perhaps the length of the on-call, or the number of on-call people at the same time is another problem Amazon could address in this case.
On-call in general (24/7 availability for some period of time), is not exclusively an Amazon thing. I'm surprised the writer tried to portray it so.
After that, the author stops giving reasons. For example, the decision to go on a business trip after 4 weeks of their daughter being born seems to have been their own, not Amazon's. " I imagine he could have turned that down, but I was insistent that he go so". She did not explain if they felt coerced by Amazon and how.
Same thing goes for the hotel they cancelled a day early. How did that happen and why? The writer did not thing this was important enough somehow, but I think it is.
Normally I'd call this sloppiness, but considering the author is a professional and this had to get proof-read, it may just be the author is being a bit disingenuous as well.