My question is:
Why isn't Turr Phenir one of the Defender pilots?
They're already reprinting Maarek Stele and we needed at least one new pilot ability. So we get Countess Riad. Also Maarek, if I'm not mistaken, didn't fly a TIE Advanced in the Lore, but Turr Phennir flew several ships including the interceptor.
Maarek flew basically everything in TIE Fighter, and if Skippy the Jedi Astromech is in the lore, the story of that game definitely counts.
Don't make fun of Skippy! Or his midichlorian-enriched fluids!