Of course it is, because of the implications that come out of it.
Either it came out of nothing (a logically absurd claim), in which case nothing really matters.
Or, it was initiated by an entity, The Creator, in which case you'd want to know what He has to say about how we conduct our lives and what comes next.
You're making a hell of a lot of assumptions. There's no evidence of a creator, no evidence the creator is a "He" and no evidence that it is remotely human with human concerns and that it cares about what we do one way or the other, or that it has any involvement after creation. You're projecting a creator that looks and thinks like you with absolutely zero evidence, which is alternatively your own lack of imagination or too much imagination depending on how you slice it. And we can go around and around on this argument, which after 50 years on this planet I can reassure you that I've seen it before. Even if I grant you a Creator (which I don't, we can always assume an infinite multiverse instead or just that cosmology allows for a causeless effect) then there's nothing that falls out of that other than the existence of a Creator. You then wind up with something like Spinoza/Einstein's God or the Prime Mover that agnostics like to consider. There's no evidence of any of it though.
Let's say you take the big bang as a historical fact. Something created the big bang. By definition, the "thing" that created it is a creator. We cannot say whether this creator is a sentient being that has vastly more intelligence than any human, but we can say that the possibility seems to make some people very uncomfortable.
Either it came out of nothing (a logically absurd claim), in which case nothing really matters.
Or, it was initiated by an entity, The Creator, in which case you'd want to know what He has to say about how we conduct our lives and what comes next.