It’s probably a case similar to the prospective First Order theme, a discarded leitmotif idea used once or twice in the films as a remnant.
Anyone know where this is from? 'Cause I love it. I guess you could argue it’s derivative of the Imperial March, but imo it does a much better job than Giacchino’s bargain bin version that didn’t need to exist, since ANH already had a perfectly good Imperial theme.
As you can tell, I disagree with ThisIsCreation’s belief that Giacchino should’ve scored the ST. Giacchino is extremely talented and did some amazing work on Rogue One aside from that major mistep, but he’s no Williams, and even bad Williams is still Williams. Besides, it’s only towards the last film he really started to run out of steam, and even then, the titular theme of Rise of Skywalker is a new and memorable theme. TLJ and TFA both have several memorable new themes, namely Rey’s Theme, Kylo’s Theme, March of the Resistance, Canto Bight, Fun with Finn and Rose, The Spark, and probably others.