I'd like to know how light it is - the article says "Imagine a bike you can easily carry up to your apartment". I have two of those it's the size that's a nuisance, trying to get round bends on the stairs), and one more that I can carry, but struggle a bit. And I know from work how heavy cardboard can be, especially when compressed and concentrated. I'd be surprised if the wheels for example, weighed less than spoked metal wheels.
I'd combine normal wheels with the exotic frame material - I'm fairly open to unusual frame materials, as long as they do the job, and are repairable (one of the reasons steel is good for tourers - there are welders all over the world!)