Yeah, I'm inclined to generally agree with this; what she left out is that now most people can live past 30 now and not die from a bacterial infection after scraping their leg.

I would add that the ideal is likely somewhere in the middle between the extremes of "living off the land and using every part of the bison" and "grinding away your soul until you collapse on the Walmart floor." Both are too far towards their respective ends of the spectrum.