That is an interesting point. I guess the obvious angle of this discourse would be how one defines God. To claim that ‘God did it’ is less than medieval in terms of reality many times. To claim that everything came from nothing is far more ridiculous however.
Not trying to be contentious, but this point has always bothered me. It is ridiculous to claim that everything came from nothing, but the universe is a ridiculous place.
Either God always existed (what does that mean?), or he came from nothing. Or there are other possibilities outside the scope of the human mind. (Likely, I think.)
If God can always exist or come from nothing, why can’t the entire physical universe always exist or come from nothing?