Error isn't implying that the final state is different. Just that the destructive copy process is a form of death and the wired brain process isn't.

I get where he is coming from, a copy is distinct from the original and can have different experiences. In the destructive copy scenario a person is killed and a person is born, In the wired brain scenario the person is not copied they merely change over time and nobody dies.

My view is that if I die to make a upload (which is identical to me except for greater intelligence & other benefits) then I think the gain outweighs the loss.