The reason no one wants a "chest freezer" style fridge (which the author of the article advocates) is because it's a pain the back to get stuff in and out, not to mention organizing your food.
Yes, this is great for home-brewing. But nobody should kid themselves that regular people would want this to replace their "normal" upright fridges.
My guess for why traditional upright fridges could be seen as more convenient is because they take up less floor space for the amount of volume they provide. Also, upright fridges would be easier for small/short children to access. If floor space is less of a concern, and there is no need for small children to access the fridge, a chest-freezer-style fridge sounds like a brilliant idea. Next time I need a new fridge, I will seriously consider this as an option. Perhaps by then some contrarian manufacturers will realize how much sense this makes and I won't even need to convert a freezer myself.
Most of the stuff people use frequently ends up on the top shelves or in the doors of fridges. Lots of fridges have really deep door shelves to maximize this utility. Similarly, nicer fridge/freezer combos have mostly moved the freezer to the bottom to increase the convenience of the fridge.
Most fridges also have quite a few shelves so that you can get out the thing you want without moving everything. In a chest freezer, the baskets don't hold most of the food. Most of it is stacked on the bottom. So to get the thing you want, you inevitably have to move other things off of it. Refrigerators minimize this hassle.
Plus the condensation is gross and extremely inconvenient to clean when the fridge is full. I can't imagine leaving the walls of my fridge wet for 2-3 months at a time. You can address that with a chest fridge that operates like a normal fridge (cooling and therefore dehumidifying the air directly), but I bet you lose most of the efficiency gains as soon as you do.