Thing is what's weird is Madame Gao's actress, Wai Ching Ho, is Chinese and from Hong Kong. In Daredevil, her organization appeared to be separate from The Hand and independent from Nobu even though they were aligned together with Wilson Fisk. In season 2 of Daredevil, that also seemed to be the case. She wasn't involved with any of the Black Sky/Nobu/Elektra business.
So it seems, K'un L'un whatever it is, was not closed off to whites and people from western civilization.
But in Daredevil S1 they were already planting the seeds of K'un L'un with Madame Gao.
I think conflating Madame Gao with the Hand was a mistake.