I read that as perhaps having to stay in the office unreasonably long at times when there's crunch towards some deadline, as opposed to going home and working remotely?

I feel like software development is one of the activities that are difficult to estimate. There's scope creep and sometimes all sorts of deadlines for compliance or feature rollouts and so on, so the actual workload can vary a lot.

Not saying that's okay and shouldn't be considered a planning issue, of course.