Those pictures seem about right for a college student -- bed, clothes, shoes, lots of books and a computer. I think I lived with that much when I was in school, though I would have added a bicycle.
The article mentions that this is the first generation in Sweden that is living less well off than the previous one. When I lived in Sweden, this was often a topic of conversation with my Swedish friends. They were struggling to understand and cope with this perceived "step down" in lifestyle. Housing is crushingly expensive and there is a 30% tax on all consumer goods. So, people live in small apartments with less stuff.
I do think it is a bit funny reading about the students "anti-consumerist" lifestyles. It is not so much a personal choice to be anti-consumerist, but more of a requirement in Sweden. You just can't afford to buy much of anything.