Hera doesn't wait, but only because she knows he'll be along soon enough. And she'd rather be the first to get the lay of whatever land they come across.

While the vent itself remains intact, the rooms they open into are piled with rubble or thick with smoke. A turn off that would have led back to the factory floor where the ceremony had been held is completely crushed. Not that there was any reason to go back there.

But eventually, Hera shines the droid's eyes lights down into a room that is very dark, but at least appears to be intact, and mostly free of dust or smoke.