I do not think charges of heresy are helpful in this discussion, nor do I think they are appropriate. Cary recognizes the two natures of Jesus Christ as do I. The question is what happened when Jesus died. He was two natures, which He maintains, because Christians believe in the Resurrection of the body, so Jesus still has the same body that suffered on the Cross.
If only one nature of Jesus died on the Cross, then it would seem that He was only half dead. That does not seem right, but if both natures died that contradicts all that we know about God, including the passage from Colossians.
In some sense I prefer the second view, because God the Father sent God the Son to live on earth as a human being in every was as we are, except to be without sin. That would seem to mean to suffer death like we do. Yes, that raises some good questions, but we know that we do not know all the answers.
We certainly cannot explain how God the Son became a human being in Mary’s womb. @Edward