The “canon” Star Wars universe, in my opinion, didn’t really expand itself much through 30 years of existence, while the EU can always and will be expanded, so if you count the EU of Star Wars, SW is doubtless the biggest sci-fi universe ever created. Having a few “canon” movies every now and then won’t expand it much, especially because it’s happening mostly around the time of Battle of Yavin(IV). That’s why I think Disney’s ignoring of EU is a bad mistake and utterly disrespectful.