Two years ago, the case seemed like a distant memory.
But in the high-end restaurant and hotel industry, two years is not a long time.
Moreover, if the restaurant or hotel is sufficiently upscale, they usually offer facial recognition services. Although most facial recognition is based on photographs, if the guest is a celebrity or a regular, hotel employees can often genuinely remember their faces.
This is just like how Jiang Yuan and his son could walk down the street now and possibly not be recognized by anyone. But if they were to fly to their usual Aman or Four Seasons, familiar hotel staff would come out to greet them and directly address them with "Mr. Jiang, welcome…"
Of course, this kind of facial recognition service is not guaranteed, as some people naturally have a low presence, or some hotels and restaurants do not focus on this kind of training and requirements, so it's normal not to be recognized.