This is how Dharma starts in a non-Dharmic land, I believe the situation is same for Tibet last time when Guru Rinpoche first came. The local people back then had their own religion (Bon) but slowly they are being converted into Buddhism by the kindness and higher level of thoughts of Dharma as propounded by Guru Rinpoche, similar here, I am pretty sure the people in Zululand has never heard of Dharma before, they came out of curiosity, but with the love and kindness shown by the Dharma center people, many of them may just start practising Dharma and chant mantra, and transform their lives, very inspiring...
And an extra bonus is that one of the first deity they met is Dorje Shugden, how wonderful!