Possibly, but we don't seem to see a race to the bottom, at least not yet. It appears that some people who want to push extra hard take it, and a lot of people who want to get to some level they consider normal and attainable. I've experienced very positive results, and anecdotally so have others I've recommended it to. Not "wow, I can work 10 times as much now", but rather "I have a choice how much I work now, I'm not hard-capped at an hour or two".