The old instructions were 14 days, but people were stirring too much and had the potential to oxidize the wine. My method follows the old instructions, but it stops the stiring, so you gain a wine that is easy to degas, and has 14 days of skins contact. The new method has 5-7 days of skins contact, but reduces the risk for people who stir.
I prefer my method, but it does stray from the new instructions. If you've done a few kits, like 15+, and are comfortable with the procedures enough that you don't have to read every step and understand why you doing things at the different stages, then use my method. If you are still in the learning process and want this kit with full warranty, follow the instructions.