And yet we all manage to agree on an auditory view of the world that is pretty consistent i.e an elephant sounds different to an oboe, no matter if we love elephants or hate elephants or are being threatened by a charging elephant. The point being that yes all our perceptions may be influenced by many, many influences & yet we mostly seem to arrive at the same auditory view of the world so I guess the signal is getting through in it's essence, nonetheless & these other influences don't count for as much of an influence as is being portrayed here.
The difference in spectrum between an elephant an oboe is enormous. Differences in reverberation are not nearly as enormous.
You are (and it seems angrily) confusing two very different situations, and you are asserting that these other influences don't count in the face of decades of experience, measurement, and publication.
In short, you are making an extraordinary assertion that runs counter to all known evidence, and are ignoring much simpler possibilities such as
1) level differences
2) equipment malfunction
3) inadvertent self-influence
4) visual or intellectual guidance of perception
It seems odd to me for you to insist on something utterly counter to decades of my personal experience, and more than a century of scientific experience, when other reasons for your perceptual experience are well documented and understood.