> At the point that there is such a huge variation in practice, for most of these steps, I can't imagine that they are very significant/important.

It seems a little premature to jump to that conclusion. The US and Great Britain are entirely different countries with different geography, climate, history, culture, laws, economies, etc.

Farming doesn't exist in a vaccum. It's affected by all of that, so it stands to reason that those things will influence policies and practices.

What I found interesting about the article was that while each system was different, each was internally cohesive. Trying to cherrypick one facet of one country's system and applying to the other would almost invariably make things worse. You have to understand the entire system.

That's an important lesson to keep in mind when we constantly read articles like "Country X does Y and it makes Z B% better so we should too!" We need to always remember that X is doing Y in some context that likely matters deeply.