That's not the issue. The issue is the commandment of God.
Which commandment of God? The one about talking to dead people? Well, it very much matters if you think dead people are dead, or if you think they are alive.
SD
Was Samuel dead when the witch of endor conjured him up? That was a no-no.
Deut. 18:9ff. Dead people; people who have died; people who have bit the dust; people who have expired, given up the ghost. Of course, their souls live on...but the commandment is not to call them up. Obey the word of the Lord! He has His reasons.