You have a fair point in principle but its certainly better than making statements/comparisons just based on on-paper measurements. If you spend the time to go and listen to different component combinations instead of looking at the specs, then your ears will be able to tell the difference. For example, I have heard the GE Reference speakers paired with other amps/preamps like McIntosh and Rogue tube amps and they sounded nowhere as hyper detailed and dry. Some people may prefer that sound.
I agree with you. In real life, there is no way we can have a fully controlled observation. The best we can do is a subjective comparison between different setup. For example, I cannot just walk into a dealer and demand that the dealer swap out multiple amps for a demo if each amps weight more than 100 lbs. There is no way he can swap and carry things around like that.
Also, using KEF ref1s is my requirement. I am not going to exchange these speakers for anything else.
I have tried active speakers and like none of them. So, they are way outside of the discussion.