Yes they have, despite the fact that such a meeting could be done via, Gate or Plane Shift - or Commune, despite the fact that merely going to the afterlife is no guarantee of meeting a deity, despite the fact that there is no one around would might raise him - and certainly not in short order, despite the fact that it would leave the cloak completely unprotected and so enable it to be stolen or destroyed potentially ruining the overall plan if the Dark One rejected the offer ... they have raised the possibility regardless.
I don't see it myself.