Unfortunately that's the nature of "Early Access" games... they aren't finished and not everything gets done in the order that makes sense to a player. It's a constantly moving target where features and ideas could be dropped entirely from the game (or not). Hell, if they wanted to they could change almost every aspect of the game before launch.
Simon did post a picture of his current bugs list, I haven't posted it here because I figure if he wanted to show it - he could. But I will mention that bug #72 has a title of "Medical Drips functionality change (food dispensers)" ... so maybe there's plans in the works to rethink the medical bay? I dunno, I'm a player too and as much in the dark as you are. I always imagined that colonist falling down on the floor and then dying is just another in a long list of things that was partly written then added to the "oh, I'll come back to this later" pile or the "oh, pizza..." pile.
But then there's all sorts of weird things that happen in Maia alpha version 0.49. Colonists dying of starvation when there is clearly enough food is definitely high up there on my personal list of "wtf?!?!?!", but it's really difficult to say that's a bug. What I mean is it could be a UI (User Interface) issue, where the player isn't given enough information to know WHY the colonist died and there's a really good reason that is perfectly valid why the colonist died. But then perhaps it is a bug. I dunno. All I can say is I doubt that sort of thing is working as intended for the finished game.
Dunno if that helps any.