Yeah, it's really hard to do blind listening tests. Thankfully, that ASR website has lots of people who will talk about the that picks up the slack when the subjectivist argument falls down: the research that has been done with blind tests that can be applied to measurements to calculate a user preference score.
I had no idea about this score, but discovered ASR once I got my Genelec 8260 monitors after a year and a half of buying and returning things that were sub par... Come to find out, the 8341, with much less bass extension, is one of the highest scoring things they've measured, so for me, (and I think about 90% of people based on the research,) from a purely acoustic standpoint, it is quite valuable to go off of the preference scores there.
That being said, a lot of people don't think of audio reproduction as a science, and it hurts ones ego to think that their tastes can be predicted when they aren't being guided by their eyes and thoughts about what 'should' sound good.
In any case, if someone is an outlier or some speakers don't quite fit that system, so be it. I'm quite happy to have a source where I can look for speakers that play well across genres and for the super-majority of people who genuinely want something that sounds good over all else... Just ask me: My speakers are more ugly than anyone else's I've met, and also much flatter and better sounding to me, though my prior self would have said "flat means clinical and it's all subjective, and I listen to X music so I need a matching set of speakers and a synergistic amp."
At the end of the day I think ASR and other places are good to pick candidates from, but at some point people have to be willing to return things instead of justifying their purchase. If someone returns 10 things for every 1 they keep, I'd trust their perspective a lot more than most who buy something and then give it a glowing review.
As far as my own experience before knowing of ASR:
Genelec 8260>Neumann KH80>JBL LSR 308... and this is borne out by measurements and calculated preference scores at ASR. Maybe one day they will also measure the other speakers I listened to but didn't keep: Genelec 1031, Mackie HR824, Devialet Phantom Reactor.
Don't have an opinion about the DAC stuff on ASR, as most decent DACs are transparent, and I spent the bulk of my money on things that make a difference, and little to none on things that don't.