If there was ever a game where the secret sauce doesn't have anything at all to do with the code, Eve has got to be it. They could probably release every single thing including all of the assets, complete buildable client and server code, etc and I doubt it would hurt the Eve at all.

But they announced it as if they are releasing a game engine? This is just bits and pieces of one with major missing pieces so I'm not sure what the point was with that. I guess its more to help modding or they are yet to release everything they wanted.