They explained it. That Anakin and the other other Padawan swapped light sabers and when the people on Skype saw the one Luke was carrying they assumed it was the other padawan that was Likes father and not Anakin

I would've liked to see that she was still involved with the DA in Deathly Hollows or even show her fighting in the battle. I also thought she would've been a good addition to harry's group. Other then Luna there was only Gryphondors in the group.

They could say that something like the leviathan could save Shepard no matter the ending. Or Bioware could have the commander as a older NPC and your playing as his child or some distance descendent.

If we are using the info from the novels before Disney. Luke had to learn how to balance all the force. He figured out how to use both sides of the force to combat the evil he had to face.

Honestly I think of Legend Luke as a Master of the Force. Someone that isn't Jedi or Smith but someone that understand that the force is a weapon that isn't light or dark in itself.