Also, you can make any number of easy tweaks to his formula to allow you to have conveniences that would make your life orders of magnitude richer than the true 1910s were. For instance, a $3,000 car, Internet access, etc. Also, anyone coming into this experiment with savings from a few years of "big city work" has a huge amount of capital to play with to set themselves up. $200,000 in savings would give you $10k a year in interest income to live on at current rates, for instance.
The whole point is mainly one about being honest about WHY we have to work 40-60 hours a week so we can stretch to afford a million-dollar starter home, two luxury cars, designer clothes, and IG-worthy vacations. Some people would arguably be happier working little to not-at-all, or working for themselves to make $10k a year and devoting the rest of their time to whatever makes them happy. Why is that so offensive an idea?