England moved to a landlord-rent model for their agrarian society, whereas France moved to a tax on production model for their agrarian society. The distinction there is subtle, but the English model encourages improvidence to ensure you can make the rent, and that improvidence leads to increased output, pressure on workers to move to cities and away from their familial land. The French model didn't put as much pressure on maximizing productivity, and their post feudal agrarian society was perhaps a little slower to take off economically, but wasn't burdened with quite the same social upheaval that capitalism led to in England.
It's a very interesting history, and I do wish we'd been able to see more post-feudal societies develop. I think there's a number of different economic models out there that would be functional. They might not be as economically strong, but they might have different strengths w.r.t. population health, happiness, or sustainability.
During the industrial and chemical revolutions, the technology to feed a large population outpaced the technology to control large populations. Feudalism fell to capitalism because society became too large to be effectively ordered by feudal lords. But this is now changing thanks to the information technology revolution. With information technology, we are developing a new means of feudalism that scales to billions of people.
I don't think the entire economy is reverting back to feudalism, I think it makes more sense to think of the digital economy as its own thing that's speedrunning the exact process we already went through once. Next step is then what, digital commoners and land reform maybe, proper digital currencies and citizenship, actual privacy protection? Feudalism on the internet can only exist for the same reason it existed offline, people flock to fiefdoms because they perform functions in a modern economy provided by a proper state.
The resulting "agency" has historically been pretty violent, when the injustice and tension are too severe. So it's wise to constantly be course-correcting by recognizing the new skins of feudalism and wresting power away from its lords.
The text's theory of history requires a hidden variable that controls the feudalism->capitalism->feudalism process, but no candidate for a hidden variable is suggested by the author. Sure, any reader can think up some candidates for the hidden variable, but letting the reader fill in the blanks is a con.