Nah, the director is South African, and the title is itself a direct and obvious reference to a real incident which occured under apartheid, so he obviously intended to provoke the comparison. However, given the trouble that has been happening recently, and the fact that the aliens are 'immigrants', I think he's also nodding heavily to modern tensions within SA.
I thought the film was OK. Definitely the best sci-fi I've seen in a while, but it can't really hold a candle to the greats. Some of the acting and dialogue was just a bit too shoddy for my taste, and though I thought the aliens looked 'cool' in terms of design, they didn't look real enough for me. Men in suits > CGI. In fact, real effects > CGI generally, but aside from the aliens, the film was pretty good on that score.
Give the man a better script (please, please, not Halo...) and he might do something interesting one of these days.