When did Mon Mothma become the de facto primary leader of the Rebel Alliance? Back in the ‘80s and ‘90s, Star Wars fans probably didn’t think about it too much, simply because in those days, everyone was more focused on Mothma sending Kyle Katarn on cool missions in Dark Forces, or rebuilding the New Republic in the Thrawn trilogy of novels. But then, after Genevieve O'Reilly became a younger version of Mothma in Revenge of the Sith (both onscreen and in deleted scenes) the canonicity of her Rebellion-era leadership suddenly started to take shape in a major way.
Eight years ago, in 2017, way before Andor and just one year after Rogue One in 2016, O'Reilly created the true origin of Mon Mothma during this famous galactic period of civil conflict. But now, with Andor Season 2, Episode 9, that origin story has been heavily retconned, making aspects of one Star Wars Rebels episode seem like Rebellion propaganda, from a certain point of view.
