Yes, I think the issue with this quiz is that it hasn't considered hedgehogs and porcupines live all around the world. In South Africa, for instance, we have both hedgehogs and porcupines, but our porcupine looks very different to a North American one. Neither hibernate here, but porcupines are well known for living in burrows (though these are normally taken over from warthogs, aardvarks and the like). Perhaps specify that you are looking at a specific type of hedgehog or porcupine?
You're probably right. I made this quiz for my 7-year-old, because he likes to do Jetpunk, even though most of it is obviously above his level. I based this on some of his educational material, but it's probably a bit simplistic. Maybe what we need is Jetpunk for Kids ;)