Yes, I read it. In fact I saw it when it was originally posted. But it isn’t saying what you are saying it is saying. Arny is saying that there is no purpose in testing a broken amplifier. These days, any amp that doesn’t, for example, have a flat response and inaudible levels of distortion can really be considered as broken, or so badly designed that it isn't worth consideration. He is definitely NOT saying what you said above he is saying. If you doubt me on this, by all means PM Arny and ask him.
How do you know it is broken if you only test 1 sample. Are you saying that all manufacturers meet their quoted specs unless the amp is defective?
Neither you nor Arney has explained how to level match various frequencies without EQ.