This seems like poor reporting.

Even droplet based spread (which is not airborne) can transfer over distances on to surfaces. This is why there is advisory for a 6+ ft physical distance.

That does not mean it is an airborne disease, as it seems the virus needs to survive in droplets.

It is no surprise to me that a choir singing could easily spread droplets on to surfaces and inadvertently touch their faces during that time.

Even a heavy breath that expels air and droplets from the lung can cause spread. That doesn't mean its airborne.