That's an interesting point. Well, there was nothing about religious beliefs on the questionnaire.
My name is not really "ethnic" so much as unusual and therefore gets considered ethnic (although WHAT ethnicity is usually a stumper) more often than not. So, in answer to that...it's not like my name is Lopez and I've been paired three times in a row with other Hispanic-sounding named people. My name is just unusual and I've been paired with three people with unusual and/or "ethnic" names...all of which have been DIFFERENT. Of course, I never met these people, but going by names alone (ha ha) I would say that all of them are of different ethnicities. The only commonality is that none of these three different ethnicities was white.
So, it seems to me that they're not trying to pair up me or those three people with people of their own ethnicity necessarily...it's more like just attempting to lump all the non-white people together. Ok, that was maybe a bit harsh. But you see my point.
And, as always, I AM willing to believe that this is all a coincidence/in my head.