That sounds interesting, but wouldn’t work.
BB-8 is damaged during training and her and Poe discuss it.
I feel like we could pass off Poe’s comments as “paranoid parent and/or trying to distract Rey from the Falcon” if the scene is pruned carefully. Here’s a rough edit of the scene that I was testing out. (I was also seeing if I could cut out Hux’s spy subplot, so all references to that have also been removed. ¯\_(ツ)_/¯ )
The shot of Leia is from Force Awakens; but I feel that if Carrie hadn’t passed away, she would have been there to greet Poe when he returned anyway. If we want to continue with something like this, other folks (more talented than me) might be able to tweak the Leia shot a bit more, or to cover up BB-8’s missing plate in the one shot. Personally I don’t think either of those are deal breakers, though.