I already corrected some of your misperceptions.
They weren’t all sitting in the Grand Ballroom playing bingo. They were distributed in chunks with separate air and private bathrooms, had masks and other prophylactic items, practiced social distancing including confinement, and had all of the resources of an entire country focused on them. It wasn’t the petri dish some are describing it as.
Also, 8 people on the ship have died and 1 that was returned to the US has also died. That we know of. And even after all this time, 127 cases are still unresolved. The death rate among cases sent to our superior HCS is twice that for the rest of the infected. Overall, it is comparable with the SK stats. Except more time has passed and we still have a crowd of infected - 18% have yet to recover or die.
DP deaths now at 12. Two more on the boat, one Canadian brought home from the boat. DCR is 1.7%.
Looks like the JHU app can’t handle as many entries as they have, or their data entry guy just stopped in the middle. I suspect the former as some of the data that would have been there and unchanged is now missing - truncated in the display.
It’s still not the flu.