Space Princesses and Unrealistic Elements in Sci Fi

This is a message to Edward Willet, who, as the only voting member (the only member of any kind, actually) of that juggernaut of a new literary revival known as the Space Princess Movement, must be consulted on a matter of crucial import!

Edward Willet entered the Space Princess movement with his novel MARSEGURO, on the grounds that (1) the protagonist Emily Wood, selkie, is the daughter of one of the unelected governing families of the planet Marseguro, ergo, a princess from outer space...