None of those things should be illegal. It is really annoying to see how a leader class kills people of hunger and make everything illegal so that now everyone is a criminal for trying to survive.
The former has access to foreign currency with a real value. The later can hope to maybe get an exit visa (the government will loan it's "doctors" to foreign regimes in exchange for real currencies).
Also, assuming we have perfect faith in Chinese government statistics and Cuban government statistics...
Nevertheless, the wild variations in Covid experiences between countries and controversy over why it happened, make me think it is a useless yardstick.
I think nothing. Cuban is an authoritarian government that uses it's healthcare for propaganda. It has all the incentives to lie and AFAIK none of these claims are verified by independent parties parties. Regardless of political system it's a poor embargoed island and it's easier to believe that they are gaming the metrics than really providing better health outcomes.