As a human creation, yes, just as much as a symphony is. Not everyone can write one, and in fact very few can; but anyone can hear one. However, most people choose not to. But as a human creation, it is something that can be comprehended by a qualified human mind.
As an ineffable, omnipotent, omniscient, infinite, eternal divine entity, though? If we could wrap our minds around this thing, how could it be what we mean by “God”? I don’t think we can even imagine a number like one trillion, never mind an ineffable (etc.) being.
That’s pretty much why it doesn’t matter if there is one or not. Exactly what difference does it make?