There's pretty much nothing connecting China to the Olympics other than being in Asia, do some research people...
I'm gonna guess here that you haven't been to Japan in recent years. The place is overrun with charter buses full of Chinese tourists. Every historical site, shopping outlet, hot springs, even large popular restaurants ... if you go to Japan and want to be able to enjoy these things, best get there very early in the morning. Because the busloads are coming, and they hit these places like tidal waves, led by a multilingual bus guide with a megaphone. They swarm like the nematodes on Spongebob, ignore behavior protocols such as removing shoes and etc., spend money, and get back on their bus.
The Olympics are a big deal worldwide, so I don't know about them being #1. But when it comes to the most persons from any one country coming to Japan this summer to watch the Olympics, I was certainly expecting China to be in the top 3. Recent circumstances may affect that obviously, if the Olympics even happen now.