same in RotJ just before jabba's barge explodes. never made sense how casually 3p0/r2 were pulled out of the sand, while surrounded by massive exploding chaos. you'll just have to accept it and move on.
Your Lord knows very well what is in your heart. Your soul suffices this day as a reckoner against you. I need no witnesses. You do not listen to your soul, but listen instead to your anger and your rage.
So how does it change the story then, how they got out? If it doesn't change the story, it's not significant. They got out, period.
The droids are to the protagonists. In the OT we viewed all these events from their point of view, they served as the 'common man' that toques on a journey through the world of SW.
They do not serve that purpose as much in the PT, but they still are not the protagonists. Exactly how they get from A to B is far from relevant or significant to the story since they rarely play any part of significance. (R2 did a couple of times in the OT).