It is not difficult to get a beer to reach fg in 3-5 days.
The recipes are provided, you must pick one.
Cold age and cold crash are two different things. My guess is the cold aging is around 60
I would assume the company has made all the recipes before and knows how to make it work. I doubt all their recipes stick exactly to the "format" described, but generally do. They are merely trying to teach people how to make beer, not win medals. It is really easy to make decent beer.