"The human mind treats a new idea the way the body treats a strange protein; it rejects it." Sir Peter B. Medawar in: The Art of the Soluble (1967).
I often invoke this quote by this late Nobelist (founder of immunology and great popularizer of science) - especially when on first encounter an academic condemns an emerging idea/finding/arena in research. Invariably, the arrogant dismissal is grounded in grotesque ignorance, and they are either too lazy and/or ill equipped to get to terms with the subject. Witness poorly informed trashing of Nikon gear by any number of self-anointed eggspurts.
So it is with technology.
And when a reviewer assess a complex entity such as a camera used very different genres for very different users? Sounds like IQ, which is bullsh*t. It is no less idiotic to try and rank cameras by a single score.
In my experience (13 months shooting in the African tropics) I rate the D850 as almost perfect for wildlife compared to all other Nikon DSLRs, including the D500. But in this genre the D850 comes 2nd on action and lowlight to the D5 (which I cannot afford).
And I rate the D850 ahead of all DSLRs for landscape photography and macro outdoors BUT the Z7 is the more versatile camera for both genres, even though the IQ of the D850 and Z7 are very close if not identical for practicable purposes.
IME, the Z7 comes in behind the D850 for wildlife based on my 1 months shooting and falls behind the D500 for action photography BUT the Z7 is far better than the D500 for all other situations IME, let alone that the IQ of the Z7 beats the D500 - for my needs.
Sony, Canon etc? I have no idea. and not a concern because adding / changing camera systems is the very last action to consider - and only in extreme crisis.
"I wonder if we will ever get past the worst legacy of IQ theory in its unilinear and hereditarian interpretation - the idea that intelligence can be captured by a single number and that people can be arrayed in a simple sequence from idiot to Einstein" Stephen Jay Gould, Wonderful Life (1989: 100)