A sibling comment to my reply made the point already about deterministic not being simple, so let me address your first point that there could be a filter causing it.
First, a disclaimer. I'm a theist. I like arguments like the so-called "modal ontological argument" and find them convincing. That said, I love explore philosophy especially non-theistic positions because I'm already convinced of theism.
Second, your arguing that there is a filter, and, yes, I agree that one of the possible explanations is a filter. But just asserting that filter with a simple claim as the original commenter did dismisses what is a fascinating exploration of why? How do we know that's a sufficient filter. How do we know that volatility prevents life from existing and asking the question? Is it not possible that there is a volatility that preserves our existence. When your dealing with infinite possible "worlds" this paper becomes more interesting.
Third, if I could put on my non-theist hat (and do it without my biases affecting me), it seems that discoveries such as those made in the paper require non-theist explanations to depend on the existence of a multiverse.
Fourth, there is something else that always get's missed. In a non-theist philosophical framework that forces us to consider all logical possible worlds and universes there is no restriction that a universe begin in a simple state such as a singularity that causes a big bang. A universe can logically begin to exists in an infinite set of states. And again, if every possible universe is equally probable. Why should we be in a universe where what we see can be logically extrapolated backwards to imply that there was a history that follows the mathematical models that we construct. Even a life filter like what you suggested is not capable of answering why we should end up in such a universe. That's a deep and fascinating mystery to be explored.