The worst Americans can be accused of is deferring trips to Hong Kong. The numbers were never large anyway, and I hardly see how that translates into panic.
Even if people are going to Chinese restaurants less (and they seem as crowded around my city as they ever were), BFD. French restaurants aren't as crowded, either, and I don't think Americans are under any moral duty to patronize any business.
These morons know less about handling an epidemic than the common Joe.