I have to agree with a message you're replying to. It does work for some people, especially if both parents are present/work from home. You actually save 5hrs of commute time and have an hour for lunch. If you split it between two parents in a smart way it's smooth sailing. My wife and I both did it and we both progressed in our jobs at the same time.
Having two parents at home during that time is massively different though. "unable to get your job done while having children around" did not imply anyone else around. I agree with you that's much easier, but if that's what the original comment meant, they ignored a significant assumption.
