I'm wondering how they do that.
Do they require everyone to play through Dragonflight to get the 11.0 pre-patch quest to use dragonflying everywhere, with all flying mounts (look out for those corkscrewing flying horse mounts!)? That runs counter to their goal of not forcing anyone to do older content in order to not be gimped. (Compare to EverQuest, where you have to do more than a dozen expansions' worth of outdated content to keep up with the Joneses.)
Do they have dracthyr pop up beside all flying trainers in the old world in 11.0 and teach everyone dragonflying from the get-go?
Because, yeah, I have a lot of flying mounts I love, but it's hard to see flying even a kick-ass slyvern (and slyvern are amazing) when I could be bombing around at 900% speed.