Even after Yoshi-P's statement we don't really know what changes were on purpose. The Moonkeeper fangs could be related to the "mouth scaling" he mentioned. Or the mysterious "special data processes" issue. He also lists those things as "examples of issues", not a full list of all the problems, so even if Moonkeeper fangs aren't one of those they could be a different issue that wasn't listed. And even if Benchmark 2 comes out and the fangs are longer, we might not ever know for sure if it was a bug that got fixed or if it was changed back as a response to negative feedback.