Back in 1977 most of the middle aged cast and crew would have had a WW2 experience, particularly the British crew. It would have been more obvious to them than us lot. As I say it only makes us feel uneasy because we know what the people who commissioned the original film were up to. The original shot wasn’t designed to provoke disgust but awe and heroism. Lucas reclaimed that for the good guys. In ROTJ and AOTC the same sort of imagery was used to evoke the fascism that used the imagery in our past. It"s a shame Chewie didn’t hold up a giant plasma bomb at the end as a simple of peace though 😄