Indeed it could just be a blanket statement, and if that's the case it doesn't really change anything. All they'd really be saying is that, going forward, everything will be on the same level as everything else. The "legends" thing might simply be a two-level distinction (G-Canon vs non-G-canon) for the layman that doesn't get into the more elaborate multi-tiered heirarchy of canon.

I'm hoping it doesn't mean a nullification of the EU, because as others have said, they'd be overwriting a whole lot of great stories in addition to the less well-recieved stuff.