You did the math!
All my mind could eek out was, The bartender won't have anything to serve the other passengers when they wake up.
Adding oxygen and food is a great way to leave the spaceship for everyone. After reading your equations, I thought a possibility would be to leave instructions for the crew to delay waking up the passengers. They don't need two months to prepare for the planet. A month, or less should do it and that would increase everything twofold.
As for the spaceship. I find that a cruise ship gets pretty old, pretty fast, so I could imagine needing ways to bring meaning into a confined life. I look at my day to day life and it is peppered with routine. The majority of my days are not that adventurous, but they do have meaning. It's so much about intentions and attitude. Like you said, writing about their experience could bring a great deal to Aurora's life and gardening/creating something beautiful is another way. I keep thinking about a scene in
Groundhog Day, where Phil is sitting in the diner with a book and is looking at the people around him. He'd been there hundreds, maybe a thousand times, but he had found serenity. He learned languages, expanded his mind and heart and found meaning in his limited existence.
Too bad they don't have a holodeck.