Can you have a grey, not evil Empire without it being Nazi apologia?
Indeed, I would suggest that discussing why Nazis were not all that bad is pretty much the definition of being a Nazi apologist.
Debate whather all (or how many) supporters of Nazi ideology and in employ of Third Reich were inherently evil can be an intresting one, as is history and origins of national socialism (was it end of germano-protestant Sonderweg or one of the extremes in age of extremes?). But realy, are we going to discuss it on message boards dedicated to board and rpg games? Not to mention I have a very bad feeling you are luring people who disagree with you into saying something what could be twisted into the violation of some countries laws. Not to mention that most of your posts is barking the same replies, implying that you are not very tolerant towards freedom of expression of other people.
In answer to your first question, yes you can. It was a distinct feel of Thrawn Trilogy and TIE Fighter portrayal of the Empire, as well as Empire of the Hand and Fel Empire, what is basicaly their schtick.