[vintermann]

That is exactly the "straw" interpretation I tried to argue against. It's not about God, at least not on this point.

It's about existential nihilism being pointless on its own terms. If you ask the question, "why does this matter" (and "this" can be absolutely anything) you've already assumed some things matter more than others. We absolutely won't get anywhere talking about God if we don't talk about this first.