In this case it appears that they gave some truths, such as that Kabbalists are extremely aware of the astral and spirituality, but adding some lies, like "there are only 36 Kabbalists". This is complete nonsense. yehuborim are not like Christians and Muslims, they actually know what's up. I'm talking about religious yehuborim and orthodox yehuborim in particular. It's a well known fact amongst them that the Torah has different layers of interpretation, one of these being the kabbalistic one. This is no "advanced", "secret" or "hidden" information, it's basic knowledge and it's obvious to any Yehubor who reads the Torah even a bit that it contains a lot of spiritual knowledge, codes, words of power, numerology, spells and so on.
There are way more than 36 yehuborim who dedicate themselves to Kabbalah, and no, it's not only the Rabbis. There is literally an entire branch of Orthodox Judaism called Hasidism that is dedicated to Kabbalah study and practice. Hundreds of thousands of yehuborim follow it. The Chabad movement is one example. Of course it's not like all of these yehuborim are high level adepts, but non Hasidic yehuborim study Kabbalah too in many cases. So you see that the "36" number is ridiculous.