I can't see how refined flour can die. It isn't alive. If it is white, soft and doesn't smell off, it isn't the problem.
How would a "off" flour smell?
It does smell a bit like my sd culture!
Are You sure it isn't alive? Since living entities like bugs, bacteria and not to forget us! Can live from it.
But You brought up a good point .Italian Slowfood people I know brought up the fact that Caputo is Big and a powerfull business that might have lost the goal of producing the most healthy product for its customers. (I refrain from eating stuff that is processed or refined)
Maybe my next time I will try one of their small family run miller flours again!