On this we definitely agree. Which is why you hear it repeated so often in the science threads that purely theological issues are outside the domain of science. But that doesn't mean, nor do most scientists claim (nor do I claim), that theology is all about nothing. As I've often said, only a "strict" materialist would declare that theological matters (gods, souls, heaven, hell, etc.) have no existence. All scientists, I assume, would agree that such matters can't be addressed by scientific methods. At least not yet.
I do however believe that science has made some cuts too narrow in trying to comply with a "scientific materialism". As an example, the study of the mind or consciousness would suffer if only the corporeal (the physical brain) could be considered. The same is true of information in biological systems.
But, thankfully, the physicists and mathematicians are not halted by such constrants and will continue to pursue anything that is at least one of these three: corporeal, spatial or temporal.