I think what we have here are different requirements for the term Hard Science. If you use the term as it is meant in the GURPS 3e sci-fi books "does not break known physical laws," then none of the versions are remotely hard sci, and not just because of FTL and non-rotation-based gravity on ships. On the other hand, none of the versions have space storms, universal translaters, laser swords, or traditional Star Trek/Wars-style force fields.