If that's right, and we don't have that much to go on so far, then he's like Ridley Scott. Bladerunner didn't have a single "message" or either, but had different "messages" that different people would pick up on in different ways.
I'm inclined to believe my lyin' eyes:
Blomkamps 2009 Best Picture-nominated District 9, in which the black residents of his native Johannesburg demand that their black-run government clear out millions of feckless illegal space aliens, was universally praised by American critics as an apartheid allegory. Yet Blomkamp has relentlessly insisted in interviews that its really about the collapse of Zimbabwe and the flood of illegal immigrants into South Africa, and then how you have impoverished black South Africans in conflict with the immigrants.