Yeah, that bothered me greatly. Even in the realm of menial work, safety comes first and I cannot believe they wouldn't have safety precautions like you outlined. I've loved the meticulous nature of many aspects of this show but this felt like a mistake that existed solely to create drama and that's unfortunate.
Maybe that is a growing issue with the base and the way it is being run, short cuts are taken and people doing stuff they shouldn't be. This could be setting the base up for a potential disaster later on, we know from the trailer there is an explosion at some stage.