screamingmetal
Super Freak
Of course they HAVE the license to make diorama pieces. They are making diorama pieces and charging money for them. Do you honestly think there is some loophole in a lucasfilm licensing agreement that you can make pieces you don't have permission to if you pack it with a piece you do have permission to make and charge more for it?
It actually makes perfect sense now, Gentle Giant has the License to sell standalone Dioramas of any scale. The only way Sideshow can offer this is as an accessory to a figure.
At least they made a 1:6 scale Idol Pedestal available to own in some way.