This argument is based on the false assumption that people evaluate and act rationally/objectively. But they don't.
If, in practice, you follow the professional classification of measurements by experts who understand the science behind them, you can't really go wrong. Amir's reviews always give you the raw data but for me (and most lay people I guess) that's just a bunch of useless noise if you don't know what scientifically makes for a good speaker design for example. The nice thing about it is that after reading a few reviews and perhaps other general sources about audio science, you can get a rough idea of how to evaluate the data and the review itself. I understand the principle roughly as follows: as much objectivity as possible, as little subjectivity as necessary.
And, above all, you don't run the risk of being sucked into an endless vortex of subjectivity, leaving you never satisfied with your own equipment and chasing the next best thing all the time.
