nowhere in this dungeon does tell you that skyriding is a requirement. I am one of those (perhaps rare) players that prefers steady flying (I have mobility issues) and I died a few times before someone told me to change flight type. Even then I struggle to keep up with the final boss, but thanks for the tip about beelining to the landing zone.
Aaargh. I was looking forward to no more dragonflying in dungeon, but I guess I was wrong. Dragongflying in bossfight? >.< Aaarrrgh!!! Aaaaaaaaargggghhh!!!!