Then let me try once again to explain.
Obfuscation, mumbo-jumbo, "you have to buy it to get it", all these are characteristic tools of frauds.
When someone who is not a fraud uses any of these devices, for whatever reason -- or even just gives the appearance of doing so -- they risk coming across as a fraud.
Therefore, if you don't want to be perceived as a fraud, it's your job to strive for clarity and transparency, to avoid mumbo-jumbo, secret handshakes, "only members of the club get it", and other such devices.
Is that sufficiently clear now?
They are, of course, talking about IP/Aiki. But you knew that.
I think the reason for the vagueness here is because this thread is in the General forum, where open discussions of IP/Aiki can get you reprimanded or banned. If you have concerns over the merits of such training you might be better off starting a new thread in the Internal Power forum.