It is essentially about how to adapt to society and the reasons to continue working for life satisfaction even after you grow older. It is not an exploitation tool for employers to encourage their employees to work overtime without compensation.
I read through and I think it's an interesting initiative (lots of good stuff around holding self and others accountable, positive reinforcement etc) but the title really makes it sound like you're recruiting for a toxic workaholic startup or something.
The entire approach seems wrong, dedicate 40 hours a week and optimize that time as much as possible. Improve and learn your tools (add new if needed), environment, optimize how you work and when.
If it's horrible weather and your family are busy with something do you forgo doing something productive because you've already met your balance amount?
If you're mentally drained or slept terribly do you do your 8 hours anyway even if you'd be better off taking time off that day? (I know this doesn't make sense if you can't dictate your hours, but just for arguments sake)
When I'm excited about a project I can put in a tonne of hours very productively and don't have drop-offs the next week
I just look at it as a set of shifting priorities, and don't put work over health or relationships
As a sort of sprint it makes sense, but you cannot practice it every week…otherwise you end up in the grave. Remember Japanese.
