Yup its always been justly applied in my mind, the Scifi-Fantasy tag....
Technically Star Trek would be too, but they do have more of a grounding in science (Never saw anyone in SW dealing with Wormholes,
time-travel theory, Einstein, Hawking, the problems involved in space travel over large distances, the theory of multi-verses or any much hardcore explaination of anything real technical on the science side...)
despite it at times being written at times with a "Insert tech ref here"
mentality in sacrifice of developing stories...
(Yep...! They DO actually employ a bunch of tech guys for that...!)
In Starwars, all of this aspect is left to the EU side...
But ALL of Star Trek too is, until such a reality is established- Fantasy also. It does just IMHO pip SW to the 'Scifi' post.....