The article is comparing the UK (long working hours, terrible productivity) with Germany (short working hours, very much better productivity).
It's unlikely that there's much difference in the technology available. And they both surely know about all the modern methods of organising a workplace.
I mostly agree with point 2, but
> We'd spend it doing the things we enjoy (damaging our livers?)
Maybe the reason so many british people drink too much is because they're working too much, and they're (mis)using alcohol to wind down.