"How in all of Ifrit's hells am I supposed to know that?" Cid answered. "It ain't like I know how far this is gonna spread."

Yes, the domes were falling. But until the dust settled they weren't gonna know how much of the city was still standing, or even if any of it was. For now, the best anyone could do was get the hell out of the way and wait. Still, if Alice happened to have a suggestion, he supposed the least he could do was listen. It wasn't like there was all that much else to do, apart from keeping out of the way of the worst of the falling rubble.