Tell me about it.
Even if two types of death were mentioned, that still doesn't specify what God meant. And let's say for the sake of argument that God meant "spiritual" death (and that Adam psychically understood this distinction). So if Adam ate from the Tree of Knowledge, then Adam's spirit would die? What is the take-away lesson from that? Knowledge is evil, and ignorance is salvation?
Tree of Knowledge of Good and Evil.
You take a bite of poisonous fruit its going to kill you.
Take a bite of evil and it does the same thing.