If that’s why then they should give us a flight form that works like traditional mounts. They already have all the animations including backwards flight.
(Hell you think they’re actual dragons. It’s never been seen in lore where dragons are riding other dragons as mounts)
You’ve got to admit that it kills the fantasy of playing a draconic being when you’ve got to ride another dragon/mount.
Make the dragon riding flight work on the isles only and use traditional flight outside of the isles.