I wonder what the demographics of those employees are, in terms of where they work. Is it a bunch of white collar programmers like most of the people on HN? Does it include a lot of grocery store workers? Does it include older people, whose retirement savings don't allow them to stop working, single parents with children depending on them, etc.
The survey was conducted by Flexjobs, a job listing site focusing on remote positions. I'm not going to give them my contact information to check, but I would guess that it probably overrepresents temporary and entry-level positions at small to medium sized companies, not big-company corporate jobs that don't need to advertise on external job boards. These jobs would be for people with fewer options, less benefits, and more likely to get overworked.
I wouldn't conclude too much from a survey of only 3,000 employees.
Sure, if you have specific information about the people polled and the general makeup of the population, you can extrapolate these results. I didn't see that it's happening here, it's just the results of a specific group who bothered to answer the poll.
Having 3000 responses doesn't automatically mean the results are meaningful. I can poll 5000 Facebook employees and get results that say 100% of them have a vacation plan and 90% of them have taken a day off in the past year.
