Re-read it, and it still makes sense. He mentioned a series of variables that would make the headphones sound different from person to person and I said exactly because of those variables we need objectivity. Then I went on a rant about lack of testing gear, because I'm still mad that I'm not going to enjoy any of Amazon's Black Friday because they almost always don't ship to my country.
It just seemed to me that he never said that there was a lack of need for objective data, so there was also no need to respond and reinforce that there is. I simply read his post as pointing out that people have different preferences/experiences which don't necessarily correlate with good measurements (in terms of high fidelity). Perhaps I'm just misinterpreting the entire thing, or perhaps you simply meant to bring up another topic which was brought to mind. Interpreting others' posts online is very tricky business indeed.
In any case, contrary to some stereotypes people who enjoy lower fidelity or colored gear also benefit from objectivity, for the reasons you were explaining and perhaps a few others as well. (This is not a response to anything, just something that came to mind :))