As far as the exterior goes, yes it does clash, however as with everything in DHS for the next three to four years, it will continue to be a hodgepodge of elements until the rebuilding to created cohesion is finished. So we know the star tours exterior is going to loose the movie set feel, its not a stretch to saw that will include an exterior referb.
Also the temple doesn't stick out any worse then the random Tatoonine traders that suddenly becomes part of the streets of America or magically transfers from arid dessert building to Endor forest terminal.
( also has anyone else ever thought it was strange that inside the endor terminal they adverse flights to endor, or is this covered by the its a movie set story?)