first to note, the provided link no longer works; the author appears to have taken the game down.
i mean, inasmuch as this is a game at all. much like many political games it has a point to make, and it doesn't want you messing around with things like choices or alternate story paths that might not lead to the desired horror.
this game accurately portrays the American police from the point of view of those minorities that are victimized by it. i'll give it that, which means it gets one extra star than most of the on-rails political IF i've read.
but honestly this isn't really much more effective than plain text would have been, and much less effective than a well-written essay containing documentation and interviews and providing proper citations.
which is to say, this kind of thing isn't going to convince anyone; it'll get a laugh out of the people who already agree with its message, anger those who disagree, and get a quizzical head-tilt from the rest.