You’re thinking about it harder than they did. The TFA voice over Easter Egg and that whole vision scene had no purpose so it’s kind of irrelevant.
Exactly, Abrams was just slinging around random ideas and easter eggs for “neat factor”. Which, as we all know, is all he does. I’m pretty sure I read somewhere that while they were editing TFA Abrams heard Ewen McGregor was nearby and invited him to come take a look at some clips and decided then and there to get him to record a line for the “vision sequence”. Ewen even said he was taken by surprise and had to reremember how to do his Alec Guiness accent. So that just goes to show you how last minute and inconsequential it was.