Waste of time and probably would be even more stressful, if that's how he feels right now. The best and less stressful thing to do would be to enjoy the trip, after all, it has great and beautiful places to go, people to meet, culture to observe, etc. Both the company and customer knew the risks of hosting/attending to an event during a time like this. But it is completely the company's fault for not calculating the risks, or ignoring it completely. But yea, whatever floats his boat at this point.