A blog post like this is mostly hand-waving at complex ideas, but that was her argument for it.
And whatever nice-sounding things TFA might suggest about diving a herd, it's obvious that 8 cattle are worth 4X as much as 2 cattle. And any "leave 1/4 of my herd to each of my 4 children" division will result in a 4X downgrade to the next generation's standard of living.
(Oh, yeah - the TFA has plenty of optimistic hand-waving.)
I agree, but nitpick: capital by definition can be put to use to produce or gather something. So resource-producing capital is redundant.