Yeah I was thinking about that, the big difference being that you are months out instead of hours/days, if a return to Earth is even possible.
I'm not sure distance matters. They're still stranded with virtually no possibility of rescue from the ground. Apollo 13 was extremely lucky that the hull wasn't breached, the spacecraft could still be controlled, that some very smart guys on the ground were able to devise the fix using bits of stuff known to be on board, the filter could actually be made, and, most of all, that it worked.