Knowing someone working for one of the three services you named…. They don’t really care. The people at the counter can’t accuse you of anything unless you are dumb enough to say you are shipping weed. After that, I would assume shipping is laxed due to your mentioned reasons.
I get the point of the guide. However, it’s kind of funny and obvious the fish and prawns would be in the top 5 consumers of water. I would expect nothing less.