My guess is they already have flexible connections with a lot of those on account of earthquake safety. You don't want all your pipes bursting and liquefying th

My guess is they already have flexible connections with a lot of those on account of earthquake safety. You don't want all your pipes bursting and liquefying the ground during an earthquake. Depending on where the connections are in the building, they may also not have suffered as much settlement as the most affected corner of the building.