It’s called lazy development and is this just one example out of many in BfA.
It’s not a matter of just getting from point A to point B faster.
It’s a matter of it being okay to draw out the whole process to get to flying with timegates and developmental gates too.
It’s a matter of sucking all the fun out of it.
It’s about the mentality of path finder (just going to give it to you once you’ve exhausted all possible content & when we get around to it too).
Flying use to be something fun. You’d hit max level and you may need to grind to get some gold but then tada! You can fly. You could finally get to content that came out with the expansion.
Now flying is an afterthought put in months and months and months after the expansion come out. Sad.