People tend not to ask themselves these basic questions.It's a funny thing. People see someone doing something different, and they decide, "I want to learn that, it MUST be valuable because THOSE people are doing it. I don't have it and if I learn it then it MUST make me better". This is a flawed way of looking at it. The question that people don't seem to ask themselves is, "Is there a good reason to have THAT thing, will it actually improve what I am doing? Is there actually a reason why I SHOULD NOT have that stuff? Might that stuff actually get in the way of my development? Is it compatible, or is it incompatible with the method that I train?"
that is what people never consider and never ask themselves. They just decide, if there is more out there then I want it, no matter what.
Complacency is one reason
Ignorance is bliss is another
Another thing, is the "marketing".
Often people are sold unto a name and have their own "idea" what they should be doing.
In the case of said martial org, they are simply providing the service that those whom entertain the "idea"
There has to be more (even if it is non-applicable) in order to hold onto those with the "idea"
Those with the "idea" could never understand "The Cup of Tea"