So you guys are apparently discussing an idea of Rey turning to see the children watching a puppet show of Luke’s actions in TLJ; I disagree with this. Why, you may ask?
The point of the scene with the Aki Aki children is to establish the stakes for the movie, to drive home our connection with the galaxy (especially in the context of this film alone) and show what the heroes are really fighting for; reducing it to a payoff of the events of TLJ undermines that.