Did anyone else find it odd that Palpatine was never referred to as Sidious in TROS? Luke dropped “Darth Sidious” in TLJ, but in a movie with "Darth Sidious "as the main villain and with a sith cult that follows him, nobody calls palpatine by his sith name.
Feels strange for luke to call him palpatine after TLJ 😕
I think if you think about it Luke using Sidious is the name that made the most sense in the context of that sentence. In TROS, Luke is talking about Rey being a Palpatine, so it wouldn’t really make sense to say “You’re a Sidious,” or to call her a Palpatine and then switch to a different name. As for the others, I imagine the general population wouldn’t know the name Sidious. In the end, it’s really Kylo Ren that’s the problem, because he should be well aware of the name Sidious. And if they wanted to keep things consistent with one name that’d be fine, but they have Kylo calling him both “Palpatine” and “The Emperor,” often in the same scene.