I want objectivity too - but from my point of view please!
Though some values can be measured (more or less) objectively, we should be aware that subjectivity always plays a big part. Just a few points to explain what I mean:
1. WHAT do you measure "objectively"? AllBinos, for instance, give great importance to distortion. They may measure it objectively, but I personally never notice distortion. So the distortion result may - for my purposes - distort the result of the whole test. Many other features, optical and mechanical, can be measured or omitted, depending not on any objective criteria but on the personal preferences of the reviewer.
2. Handling is obviously important, but it is hardly possible to describe it objectively. It depends very much on your hands (etc.) and on how you use them.
3. In the end your binos have to work together not only with your hands but with your eyes and with your brain/perception. There are no objective values that can describe or predict how well a model will work for a particular user.
I'm not saying that it's all subjectivity, but we should be aware of the limitations of apparently objective tests, reviews, descriptions ...
Ivan