That update - wow. Just, wow.
I'm seriously boggled that that WASN'T a last resort and they purposefully chose that space. I staffed a con for a while (during years when we were REALLY growing) and every time we needed more space our thoughts were "What other venues have more space?" or "Can we shuffle our room usage around a little?" or even "What if we cap attendance?" The idea of putting any part of the con in a PARKING STRUCTURE never even crossed anyone's minds.
I also can't believe the hotel let them do this - it's a lawsuit waiting to happen. Just, wow.