So far, there are no cases of coronavirus here on Oahu. To my knowledge all direct flights from China to Honolulu have been suspended as of Monday. There are a lot of international travelers in Hawaii, but there have never been many Chinese visitors at Aulani. Chinese tourism to Hawaii in general has dramatically decreased in the past couple of years.
The Asians you see at Aulani are predominantly Japanese and Asian-Americans. And before anyone asks "How do you know?" - I'm Japanese and can easily differentiate written/spoken Chinese, Korean, and Japanese.
To put things in perspective, Orange County has confirmed cases of coronavirus - would you cancel an October trip to
Disneyland?
As an Oahu resident, my opinion is that people here are aware but generally not concerned. I can't tell you how many bad Corona beer/coronavirus memes I've seen on FB lol