The instructions I read said to put some comb in the jars to start them (and the design has a roof over everything so they're in the dark except when you harvest.). The company went out of business, but they were in business for a while so there should be some good experience to draw on from people using it. They said put the jars out with comb a week ahead of when "the main honey flow" (https://makinghoney.info/summerhawk-ranch-mason-jar-beehive-review/
), not sure how to know when that is. one advantage is being able to see what's going on inside the hive without disrupting things by pulling the hive open.
I hope there are other companies making this, but it's hard to find and the reviewer said there was only one company at the time the wrote. It doesn't seem too hard to build if you have tools to make a hole into the jar (even if the hole doesn't fit the lid exactly but is smaller, the lid can be attached with other means).
Regarding the factory farming aspect of this, I can't speak to it yet, but the human-made box form doesn't seem more natural than the round jar as far as that goes. Round is nature's way, from the shape of a bone to a leaf to a foxhole. I've request Song of Increase from the library so I will get more up to speed soon.