The comparison to the couch was made in that if a person destroys your couch you are entitled to sue for the monetary value of the couch. If someone kills your dog, you are only able to sue for the monetary value of the dog. So if someone killed my lab/beagle mix that I got from the pound I could sue for $35? The emotional value of a dog is much greater than that of a couch but legally it doesn't matter. That to me just seems inherently wrong. However, for the reasons that I discussed above, I think trying to change that is going to open Pandora's box!
Unfortunatley, the law has no way of compensating a person for death or injury other than money. (assuming there is no criminal liability)
But I agree 100% that by opening this up to change, will create new problems that may be even worse.