@oristarA,
The operative phrase, Ori, is,
flies in the face of [something]
Remember that discussion we had about 'data' being a singular or plural form?
I, in effect said that the rule that describes that situation flies in the face of logic and reality. That rule is an affront to reality and logic.
In this particular case the author is saying that abandoning a scale is an affront to the most basic principles of scientific measurement.