Because it’s Disney Star Wars, and unless they pull a fast one and call this an alternate Timeline, you are still on course for Jake Skywalker
Not Grand Master Luke Skywalker
You can’t argue this. As long as the Disney Sequel Trilogy remains “valid”, Favreau can give all the fan service he wants, doesn’t change the shit world sandbox he’s being forced to play in.
It’s an instinctive defence mechanism to protect it from Kathleen Kennedy. She makes the ‘I Spit On Your Grave’ films looks like a celebration of manhood.