Seems like they're preparing a new part of Time Temple.

I wouldn't use in-game mechanics to justify story elements.
It's Aerith syndrome.

I mean, compare falling all the way from the Temple of Time to falling from the top of the waiting room in Dragon PQ.

I still don't know why they included that feature for DRPQ. It's not even that high, my character's fallen greater distances down Ludi tower.

But I digress; true, story elements tend to contradict in-game mechanics fairly often. You never can explain one with the other with distinct certainty. Mir/Afrien (goddamn, I still believe it's Mir, and that Nexon must be misleading/pineappling stuff up somehow- too much evidence points in that direction) fires off a lightning bolt from his mouth, which he never does in-game. And Mercedes has a strange green magic circle buff that she never actually gains access to.

But there's nothing that suggests that a fall of such great height would cause Maple characters to die, either. Are there any precedents? I doubt there's ever been a story-based scene involving someone being flung off a high place prior to this. And even then the flinging's implied.