When I told them I didn't list that particular position because it was totally unrelated to my subsequent and current career path, they wanted to know details which were even more irrelevant.
I think they invited me because I have an ethnic sounding name and then rejected me because I don't look sufficiently ethnic to go with it. But I can't prove it.
You may have been better off in the long run. If the company was that stupid in how they handled potential employees, just imagine how they treat their actual employees in reality.