I absolutely disagree. Reviews are subjective by definition, defined and colored by the knowledge and experience of the person doing it (which is very different from a company's collective vision), and games certainly aren't a homogenized media that allows for objective comparability, even with a fixed scale. Having opinions and diverging tastes doesn't preclude the reviewer from accurate and fair criticism, in fact, it helps us as readers understand those points better.
Objectivity will always be an ideal, but games involve so many different forms of art mixed together and rely a lot on characteristics that are very hard to define (gameplay) that that personal, individual perspective is absolutely needed. Maybe technical and performance aspects are the only ones that could be judged in the way you mentioned, but to wish there shouldn't be a voice and personality attached to an opinion is bonkers to me.