Yup that's a pretty preposterous and nonsensical marketing statemement to make about an entire and incredibly diverse group of people all with different backgrounds, characters, styles, motivations etc.
All Brits are like this, all Germans that, and all Americans so kind of quite immature and silly nonsense is what that is.
Now I don't think anything of people selling systems.
But if someone is going to be doing that I sure as heck wouldn't bother buying a traIding system from him, if he can't even get his spelling right on his marketing platform on the web, how on earth could I trust him to get the kinks ironed out of his program code.