I wouldn't deny that it's being done. Some posters in this thread have mentioned working 7 days per week. Hell, after my freshman year of college, I worked at a fireworks warehouse 12+ hours per night, 7 nights per week for a month. So it's obvious that 7-day workweeks exist. But the impression I get from posts in this thread is that people are worried that suddenly everyone's going to be forced to work every day of the week, and I just don't see that happening to any great extent--no more so than in the states (or industries) with no restrictions on the 7-day workweek, at least. (In
May 1985 (PDF), e.g., fewer than 3% of wage and salary workers nationwide worked 7 days a week. It's likely that this figure has changed in the intervening 30 years, but it's the only result my quick Google searches turned up.)
*I decided to spare you a
King v. Burwell joke. You're welcome.