On Twitter, The Last Jedi director Rian Johnson revealed that Luke Skywalker’s Force illusion on Crait has some precedent in Legends – a mention in 2010’s The Jedi Path.

Yes, the movies have been inventing new Force powers since forever. No, it doesn’t really matter that the idea existed back when the whole concept of a sequel trilogy was still being roundly denied. It’s just an amusing bit of info.