Oh, certainly. Again, this is the sort of minutia that makes this a diversion from normal life.
My thought on this is the finished film presents a planet in the viewscreen, after an exterior establishing shot of “hey look we made it to that planet mentioned last time you saw us.” So having Tarkin with a blank starfield wouldn’t feel right unless you removed it from the exterior shot too. Which could work, but would be a level of divergence I don’t want to bring to bear on “Star Wars (1977)”. (See prior pushback to me considering deleting the line about Ben never owning a droid!)