I thought I saw something that only 34 people were left on the ship. Which I found interesting for a number of reasons. A) I can see feeding a ton of people, but a handful? So what is the crew up to? B) Why would anyone stay? I can't imagine not thinking that I'd be better off almost anywhere else.
The last I'd seen (earlier today) in the Japan Times, there were still ~300 passengers and the thousand or so crew still on there, but that could be outdated compared to what you saw. A lot of the crew are cleaning and disinfecting now, and I believe they are under an additional quarantine before they leave. By the way, in case it hadn't been mentioned, the crew are all receiving two months of additional pay, including approximation of their usual tips, as "hazard pay" (not sure it's been called that, but essentially). Glad to know they'll be compensated in some way.
@shader, I know you're not going to include cruise ship numbers anymore, but I think your numbers have been off the past couple of days because there have been many reports of people who were cleared to get off the cruise ship and have now tested positive after going home in their evacuation flights. This is in addition to the 14 that got on the US flights after testing positive. I believe there were seven in Australia, six in Canada, a few more in the US, and at least one Japanese citizen who was allowed to leave and
took a train home, only to test positive later. I was amazed and horrified at the time that Japan let those who didn't take the evacuation flights just get off the ship without further quarantine, and it turns out that indeed that was a bad idea.
By the way, to answer the question of why anyone stayed, some (including quite a few US citizens) chose to take the chance that they would not have to be further quarantined in Japan after leaving the ship. So instead of taking a flight home on Feb. 16-17 and then facing another 14 days of quarantine in the US, they hoped that they would be able to get off after the initial quarantine, say on Feb. 18 or 19, and then just tour around Japan or other countries until they are cleared to come back into the US. Seems like that worked out for them, though it's not the choice I would have made.
At this point those still on the ship are likely awaiting test results. They had to do the tests over several days, and the results take a couple of days.