Hmmm...an oxymoran if I've ever seen one!
PLEASE PLEASE PLEASE don't think that the directions are WRONG. They aren't. There is more than one way to brew a beer, and there is absolutely nothing wrong with the kit directions in this case. Racking to secondary is certainly a viable and proven method.
HOWEVER, you don't HAVE to. Most modern brewers just leave it in primary unless you are adding fruit or some other secondary sugar source. A good rule of thumb is THREE weeks in primary, then bottle/keg, but just note that every fermentation is different, and some may take sightly longer, especially bigger beers. The only way to know is a hydrometer reading. It looks like you are at FG, so you're good there, BUT also note that even after you have reached FG, your yeast then start a phase where they go back and eat impurites and byproducts in your beer, making it a cleaner, clearer beer. This phase takes place for a good 4-5 days after FG is complete. Even after that phase is complete, the beer will just start bulk conditioning processes, so no harm in leaving a beer in the primary fermentor for 4-5+ weeks.
Just use the general 3-3-3 rule for most beers under about 1.06 OG:
THREE weeks in primary
THREE weeks in bottle to carb/condition
THREE days in the fridge before you serve.
Anything over 1.06ish, just note that carb will probably take more time. Your current 1.072 may take a good 4-6 weeks to carb properly.
Practice this on all of your beers and you should make some quality products.