Mars could be a one way trip for the following reasons:

1. If they couldn't even get the on board toilet facilities right, who knows what else is wrong with NASA's quality control.

2. This mission is a DEI mission. Guess NASA didn't get the message or DEI was already too baked into the NASA cake to change anything for this mission. NASA is glorifying that this will be a series of "minority firsts"--first black man to the moon, first woman to the moon, first Canadian to the moon. That's a pretty effed up set of priorities for a mission like this to have. It might explain why they couldn't even get the sanitary facilities to work correctly. They're more concerned about bending the knee to DEI than to competence. At some point someone's going to pay the price for that kind of thinking. Hopefully not on the current mission. But on a 2 year Mars mission? Fuggehdaboutid. No one's coming back alive if they try that. Not with the current worldview solidly in place.