As a nigga who knows exactly how studios work and the sort of thing that they are concerned with, this shit is common knowledge. In the end, Hollywood studios are concerned with money and money only. It's a fact that historically, movies staring black male leads don't do well overseas and these days the overseas market makes up a BIG portion of the box office. Will Smith is about the ONLY black star who bucks that trend sometimes.
I'd say this is more of an indictment of how blacks are viewed overseas and anything malicious on the part of the study exec. But it does speak to their unwillingness to make art for art's sake and being a slave to capitalism.
In the end...they trying to make that money bag as big as possible.