If you'd just think that this is a skinny dog if you didn't see the strings instead of freaking out because it's limbs aren't attached at all then frankly you're crazy. Suspending belief, it does not.
I feel bad for the dog (repetitive motions like that indicate mental problems) and I'm pissed at the owners for allowing it to stress the hedgehog like that and for putting it on youtube as a "cute" video. Just sad all around.
Thanks.