That’s a really good theory. Rey seemed quite genuine when she said she thought Luke was a myth. But that puts us, perhaps, off the trail of what should be the obvious conclusion for the rest of the film (although we keep suspecting it, time and again).
She wasn’t kidding then, when she said “classified? Me too”. Classified even from herself? It also makes her reaction to Maz’s ‘take the damn saber’ bit even better.
Well. Time to watch the thing again with this in mind. 😃