Very true indeed!
I cannot even imagine that a so simple acoustics truth is denied because someone believe as ultimate measuring truths solution the designer marketing department so good his amplifier could be...
i will add for more precision : "the lesson is (electrical )measurements are a tool for the designer .How it sound is for the listener" in his room dimensions , geometry +acoustics materials content for his specific ears canals measures and HTRF .
still laugh at how we were all caught up in amplifier specs in the late 70s/early 80s. % THD and power output seemed so important. Then one day I heard a good amp without negative feedback which is how they got such great looking specs. The lesson is measurements are a tool for the designer. How it sounds is for the listener.