Those are not human organs growing in pigs. Those are pig organs growing in pigs that have an expressed gene for a human cell membrane protein that helps mask the cell surface and reduce the rate of tissue rejection that always occurs with transplants.
Why do you suppose a pig organ can be used in place of a human organ? Could it be because the pig and the human are distant relations? Let's see -- both are vertebrates, both are mammals -- yes indeed, they are related after all.
Well, then we can just use any old swine body parts for your next operation, since no genetically modified organs are needed in your views??
No, I wouldn't do that to you. I know that using an non-genetically-modified pig organ would kill you, and I wouldn't allow that to happen. Man has to reprogram the pig's DNA via Intelligent Intervention for you to live, and even though you doubt the theory, I'll make certain that it saves your life.