There is a difference between working 60-80 hour weeks all the time vs putting in a week of crunch time that happens rarely. Latter is oftentimes inevitable, whereas the former is a sign of poor time management IMHO.
There was nothing in my question about lying, It just seems that is very tough to emphasise your dislike of constant 60-80hr weeks and still be able to convey the fact that you wont shy away from a late night work when absolutely necessary.
That's why the author writes "How often do you expect...". Of course you can choose a different wording if you want to be clearer. Also, note that this happens in a face-to-face conversation, so you can always gauge the reaction of the interviewer, qualify your question, etc. I usually ask "how are your working hours like?", and add that I'm used to working overtime and weekends -- that not only avoids the impression you mention, but also makes the interviewer more likely to be honest in their answer.
By the way, I wouldn't call someone who doesn't want to do overtime "lazy". For instance, just because I'm "used" to working long hours doesn't mean that I'm indifferent to it.
There was nothing in my question about lying, It just seems that is very tough to emphasise your dislike of constant 60-80hr weeks and still be able to convey the fact that you wont shy away from a late night work when absolutely necessary.