Why does it make you angry? I work in the aviation industry, where we can be away from home for days at a time, working night after night, early mornings, weekends, bank holidays, etc. I have worked 70hrs in 6 days, crossing 8 time zones, and my day off was a weekday. I knew what I was getting into when I joined the industry and I don't think the employer you have highlighted here as tried to pretty the job up and hide the hours at all. If someone applies at least they will know what they are applying for.
In my industry, the long hours we work are apparently not enough. I'm not happy about the goalposts being moved, especially when people's lives are at stake. I would never expect to work a nanny for such hours, but clearly there are plenty of people in the world who think it is acceptable to squeeze until the pips squeak. If you don't want the job, don't apply for it. But there's no need to get stressed about it. If noone applies, they will get the message!