I'm not surprised. The developer, Arsaffria guy, is a purist from the vanilla / tbc days. It makes sense.
Incorrect, you could above a certain level and only for a brief time at the beginning of the expansion.
We have felled demon commanders, cowed the master of death, conquered Old Gods, and stopped the Aspect of Death from destroying the very planet. Now, we need to kill this dude who managed to enslave pudding eating panda's, slobbering sauroks, and hilariously inept hozen. Awesome. Really epic.
They could do weather, which I think they should anyway.
They could also implement more nets and surface-to-air cannons, yet that suffers from the incredibly large skybox issue too.
I think they could do several of those things and make them work, yet be believable - but they'd have to lower the skybox ceiling down to around 20-30 yards - essentially the treetops.