This just and similar rebuttals just make the point that the lost ground happened in a gradual fashion. When the parts of the structure fell, much had already r

This just and similar rebuttals just make the point that the lost ground happened in a gradual fashion. When the parts of the structure fell, much had already rotted away, sure. That doesn't change the basic outline that the situation involved a decline in "civilization" and general quality of life. IE, it was a rather bad time, in contrast to the OP.