"the imprecise Imperial Unit"

The word "imprecise" is also factually incorrect. AFAIK, all Imperial units are now defined in metric. An inch is not "approximately" 2.54 centimeters, it is defined to be 2.54 centimeters, or, if you prefer, 2.540000000000... centimeters. A pound is defined as 0.45359237 kilograms.

It may be very precise specification of a value that is unpleasant and hard to work with, but there is no more and no less precision in the Imperial system than there is in the metric system, because technically Imperial is now just a flavor of metric. In that sense, we are metric already. This is definitely not the sense that people mean, but it is not entirely invalid, either.