It’s not relevant, or rather it’s not in any way that would negatively impact others by dint of some other race being able to reach things faster and assuming dragon riding isn’t expanded.
Currently Dracthyr leave their starting zone at 60 as I’m aware, and chromie time ends about a minute or so after you hit the cap for the previous expansion, so until the expansion afterward - and, again, assuming they don’t expand dragon riding - it wouldn’t be an issue in need of correction, and stands as no argument for present circumstance.
In seeking out pet battle encounters you’re arguably at a disadvantage because you’re moving so fast the game probably won’t be able to render the NPCs around you in time for you to notice, stop and touch down. Mog farming only brooks mention as it was among the arguments blizzard proffered, and its only use would be in reaching instance portals, thus providing no benefit above that of others players assuming dragon riding isn’t expanded to encompass the rest of the world.
Yes, there are things to enjoy in old content, but none of those things are made the lesser because someone else can get to them faster anymore than is a single hearthstone lesser because Vulpera have two.
And that’s why I think they should make it a toggle rather than a permanent upgrade from traditional flight. Players that don’t like it can keep the original, those that do get their dragon riding with all it entails, and Soar, being itself an un-upgradeable version of base dragon riding, requires neither a nerf nor a cooldown to manage perceived imbalance.
Yes. They nerfed it.
Yes, if none of this were public knowledge there would be no uproar. But it would also deprive blizzard of a lot of free advertising, and advertising comes at a cost.