I see this argument a lot.
"When we unlock flying its already too late into the expansion. Its at a point where it doesnt even matter"
Dont know about you guys, but i must do all World PvP quests to reach Conquest cap (because i dont do rated arenas)
Today i had to kill 35 players, some in Voldun, some in Nazjatar.
And i felt like total crap for being the only one on group without flying.
The ultimate humiliation was when in Nazjatar one guy had to use the "Taxi" flying mount on me, every single time, for 20 min.
I was lucky we had a nice soul on the group to "taxi" me around...but...from now on, all World PvP quests will be a nightmare for me every week
Disclaimer:
Im not complaining i dont have flying. Im just saying its not "useless" at this point, which is the argument i see a lot.