It's only known and being talked about in a couple of select circles, 1) Disney fans, who seem to either find it curiously interesting or on the flip side,disgusting, 2) Film buffs who admire how its "Guerilla style" shooting technique. Outside of those two, not very many people have heard of it.
This was discussed quite a bit when it first made its appearance at Sundance, and the general consensus was that Disney would have a hard time squashing this and making it go away without it creating a lot of noise in the press, which would give it even more publicity. A quick Google News search only turned up less than a dozen hits, and LA Times and Entertainment Weekly were the only two major news outlets covering the release. So, I really don't see that this is getting much traction.
Looking at the latest poster though, it seems as the distributor/studio is pushing the envelope and maybe their luck by featuring a bloody likeness of Mickey's hand and the well-known Disney script style font. But still, I think Disney's best move is to stay quiet on it, and if asked about it, simply state that it was unsanctioned, unauthorized and they haven't seen it and/or don't condone it. Anything more than that, and I think they run the risk of inadvertently helping to promote this garbage.
