I don't think any of these complaints really work. If there is nothing present in the signal that might be the basis for a claimed experience, then the claimed experience is either random or driven by extra-stimuli factors (order effects, frequency effects, time-of-day, fatigue, intoxication, what-have-you). It's not some kind of inverted bias to simply say that it is unlikely there are auditory differences when measurements support that claim.
As for hypocrisy about audibility, some folks admit that but like exceptional engineering even knowing the gear all likely sounds the same. I can make a moral case against unnecessary spending but it would lead to a fairly sterile life.
Ultimately, though, these complaints are flawed generalizations. Many of the readers of ASR are engineers and designers who are just exercising their intellect and buy little or nothing on the big board.

