why would they be dying without sin?
that proposition, that they were created in a perpetual state of death which needed to be constantly remedied by eating an 'antidote' tree, would contradict Romans 5:12 ((sin entered the world through Adam, and death through sin)) and it would blasphemously indicate that the breath of the Spirit of Life ((Genesis 7:22)) was not life at all, but only a deceitful, temporary illusion of life.