They can be referenced in throwaway lines, but not dwelled on. It could easily be done. Like Anakin referencing in ROTS how he saved Obi-wan's life 10 times. Or Han talking about the bounty hunter they ran into on Ord Mantell in TESB. Jaina and Ben wouldn't be concerned with the past, they're Jedi, they'd be living in the moment, where they're focus belongs.