The OT followed the good vs evil non-moral-relativistic approach, so it's reasonable to expect spinoff material based on it to follow that. The PT tried to be greyer, but it was still a lot more good-and-evil than it wanted to pretend. The EU tries to be greyer than either trilogy and that's definitely a mistaken direction. In Star Wars, we shouldn't have the rebels suicide-attacking civilians while the imperials are this moral bunch. That's just total bullshit. As for the argument that the greyer stuff is realistic, that misses the point that star wars is not supposed to be realistic. Trying to make it realistic is a mistake. If you want realistic gray science fiction, go watch Battlestar Galactica. Star Wars is not supposed to be Battlestar Galactica.