In case anyone hasn’t done the instance since the patch. You no longer use your dragonflight to get around it. There are “flight masters”. They take you to the next event in the instance.
Also the last fight is very different. There is no skipping the entrance to the last boss either.
Not sure it’s a bug. It makes sense to me to make it only using flightpaths, due to it being the new player experience. And no one gets dragonriding until level 20.
With it being only in Normal, it makes sense that the easy queued version while leveling is dumbed down.
The original design intent was Nokhud comes after you get dragonriding.
The removal of dragonriding freely from Nokhud in Normal queue is so that the group stays together, no one has to learn where to go or shortcuts or gets screwed out of things.