No, he really didn't. I'd really like to hear
@BrianFromWA 's take on this, but from my perspective as a former Air Force officer, this guy, no matter how well-intentioned, did not do his job or uphold his oath to "support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same".
The US Navy has two aircraft carriers in the Pacific; the USS Theodore Roosevelt and the USS Ronald Reagan. They are the main way that the United States can project military air power in a region that includes China and N. Korea. Both ships now have active cases of covid-19. The Navy has a responsibility to maintain the capability of these ships to perform their missions no matter what the circumstances may be. Geopolitical adversaries don't give you a pass because you've got some sick sailors. Maintaining the operational capability of these ships certainly includes taking into account the health of their crews, but there are a lot of factors that would go into deciding exactly what should be done at a time like this. That takes some time to figure out and to move assets around. In the meantime, you have to consider that the sailors on these ships are mostly young and healthy and that the ships have large and well-equipped sickbays. This isn't a case of a Carnival cruise ship full of old folks and a few doctors to take care of them. This guy at first responded correctly by notifying his superiors of the issue, but then decided to put the Navy in a really awkward spot by going public with his concerns. That passed sensitive information to our adversaries, it gave a great deal of worry to loved ones of the sailors, and the public response perpetuated the notion that maverick behavior is somehow admirable. The chain of command exists for a variety of reasons and one of those reasons is that no single officer can possibly know all of the facts that need to be taken into account in deciding how and when a valuable military asset is taken out of operation, even temporarily. Covid-19 isn't going away anytime soon. The military doesn't have the option of just going home and sheltering in place.