This is what we like to call marketing gimicks. Instead of competing with competition, they just convince the potential customer that the competition is useless utter crap. That way there is no need to even worry about having to explain why certain things are done/taught differentlty cause the customer is already convinced that those other ways don't work. Here is some advice that will help you greatly in life, NEVER TAKE THE COMPANY'S/SELLER'S WORD AS THE ONLY WORD. This goes for anything you will spend money on. Always do research and get opinions from other places. Its good you asked this question here, as you may have been sucked into the marketing ploys of the sellers.
Also here is something you will hear time and time again on this forum, you cannot learn from videos, books and the like. Proper instruction from a proper intructor is essential if you want to learn how to do things correctly, safely and effectively. Regardless of whether your intentions are for competition, tradition or self defense.
Welcome to the forums and if you keep an open mind, you will learn far more than you thought possible from a forum.