There's nothing in the ORM that prevents you from doing what the article describes; hell, the article describes doing it with the ORM, and, double hell, the ORM does the right thing by default, at least as far as avoiding N queries goes.
The solution is to know how a database works, instead of thinking that Product.objects.filter(color="red") and [product for product in Product.objects.all() if product.color = "red"] are exactly the same thing.
The solution is to know how a database works, instead of thinking that Product.objects.filter(color="red") and [product for product in Product.objects.all() if product.color = "red"] are exactly the same thing.