The whole point of this article is the apparent culture that made these irrigation methods possible. However, instead of telling you about it, it keeps repeating itself, over and over again, and never really tells you why or what made irrigation better 1,500 years ago.
The article is 6 A4 pages long, and can very succinctly be summised in those 4 lines OP attached to the post as a lure.
I would love something like this. I would however want it to somehow also portray the nationality of the owner.
The product may be 100% grown and produced in the EU, but be 100% american owned. Maybe I'd rather the product be 90% EU produced, if I could also be sure it's 100% EU owned.