Luke Skywalker himself, Mark Hamill, has said he was initially reluctant to return in his iconic Star Wars role, believing that Disney would be unable to "catch lightning in a bottle twice."
For my money we have more than enough fanservice in media right now. Something like that would mean losing the power of that quiet scene where Luke mourns his friend on the Falcon, knowing that it’s his own bad choices that kept them apart for their final years.
The mistake was to not have a single scene where Luke, Han and Leia are all reunited.
We only got a brief moment of Han and Leia, and an even briefer moment of Luke (force projected) and Leia.
Come on, just one moment of fan service before the entire cast dies one by one.
For my money we have more than enough fanservice in media right now. Something like that would mean losing the power of that quiet scene where Luke mourns his friend on the Falcon, knowing that it’s his own bad choices that kept them apart for their final years.