Apparently, you neglected to read the article. The first argument presented is that the saints in heaven are not dead.
But the first premise -- that the faithful departed are dead -- is false, and directly contrary to Scripture. Jesus actually denounces this view as Biblically ignorant (Mk. 12:24). He reveals the truth about the Saints when He says, “I am the resurrection and the life; he who believes in me, though he die, yet shall he live, and whoever lives and believes in me shall never die” (John 11:25-26). And in response to the Sadduccees, He says (Mark 12:26-27):And as for the dead being raised, have you not read in the book of Moses, in the passage about the bush, how God said to him, “I am the God of Abraham, and the God of Isaac, and the God of Jacob? He is not the God of the dead, but of the living; you are quite wrong.” So the Protestant view that says that Abraham, Isaac, and Jacob are “dead” is “quite wrong.”
It helps to read an article before posting attacks.
Read the Article I linked, it addresses the issue, your argument and why its prohibited.