1) It wasn't really the exact same system. EotE got rid of the party sheets, the action cards, the talent socketing, and a number of other things which some people hadn't liked.
Sure you do, there just aren't any cards for it, instead you have to look it up in the book on a hierarchy tree. Turn them into cards and put them on the table and you have the same system. You also have a party sheet, it was just called "your ship".
Really the only thing that was missing was the stance and the action cards, but both of those mechanics where very genre specific, as you mention in point 3 and I agree with you, some system/mechanics are very genre specific making sense in one setting and none at all in another. I think stance and abilities where definitely a very fantasy type thing in particular given that most of them where very super natural.