Me neither. The Captain of the boat is written as a moron for no other reason than to drive plot of the week.
Firstly, the sailors on this boat live their enlisted careers in a need to know world. The brass holding back information is par for the course. The chain of command offers them the info they need to do their job and little more. That said, this is a brave new world they are living in and are essentially out on their own, I can see the need and desire for the captain to want to be transparent in their mission.
Yet in this episode we are faced with the completely manufactured drama of keeping last week's away mission and the progress of vaccine testing a secret. Such contrived stupidity is basically the only thing driving tension in the episode.
There was nothing at all about last week's away mission that demanded secrecy once back onboard. Zero. Bunch of sick locals we were unable to help and had to leave on the shore. Who would have thunk it after the world just got wiped out by a deadly disease. Dictator/drug baron/criminal uses force to take over remaining healthy populace in local region and sets up mini empire in a post-apocalyptic world. News at fucking eleven. This is the kind of thing they should be expecting when going ashore, yet it is judged too much for the crew to handle and they must be protected from such knowledge.
Similarly, there was nothing about the vaccine testing process that demanded secrecy. A 10 second lecture on scientific method would explain to anybody that monkeys are going to die in the process - a lecture CDC lady still fails miserably in giving when asked to. Instead, secret overboard monkeys.
They could have easily written the whole episode around the 'lockdown' and associated fear of the virus getting loose onboard - in fact the episode was titled 'Lockdown', yet that story beat seemed incidental. It could have easily been used as the driving wedge for evil scientist to use and in turn the reason some crew wanted off the boat, yet the 'secrets' angle was much more heavily played.
The secrets angle should have been kept for a scenario that makes sense - like an away mission coming across an island utopia, free from disease, with many of the mod-cons of home. Something that may actually entice mass desertion from crew members that conveniently became 'un-enlisted' a couple of weeks earlier (as if that would be something that even matters now). That may be something the captain would actually want to keep quiet.
Honestly, who writes this drivel?