That's only useful in countries with large grasslands.
He's not talking about range grazing, he's talking about these fake regenerative farms where they feed chickens with fossil fertilizer grown corn, herd cows at low density on the same land for very expensive beef and then pretend they are regenerating the soil out of thin air. Range grazing though also obviously exhausts the soil, the cows extract nutrients, we shit them down the sewer. We're removing nutrients from soils at far greater rates than geological processes can return them.
Whether it be intensive farming, "regenerative" farming or range grazing all unsustainable medium term. Short term we can put fossil fertilizer in fields and range grazing won't immediately exhaust nutrients, but peak fossil fertilizer is at hand and peak range grazing is probably crossed already. Too much human waste is wasted, we have to learn to recycle for technological civilization to survive. Shit luckily is the easiest resource to recycle.