Yeah the whole thing was a joke. We didn't actually talk to Greg at all, though we probably will again in the near future. Hopefully anyways.
So yeah, TSO is not Krakalin, void is not an element, we still don't know how or if Kapura teleports (which is why he would have been a cool Great Being), BIONICLE and Hero Factory are not in the same universe, and muffin button has nothing to do with anything.
The previous interviews though were legit. Velika is in fact the Great Being, the Red Star is full of dead people, etc.