Review/criticism and reviewer/critic are not interchangeable, although they are used that way every day. If we look at film or book industry, critics
analyse and judge, this goes from what effect it can have on its viewers, a demographic, political and social political issues, etc. Reviews are targeted for the consumer consumption as recommendations, it is about the consumer and the protection and/or recommendation to the consumer. It is almost never about analysis.
One can be both a reviewer and a critic, but a review is not a critical/analytical piece by default, a review in all industries are consumer orientated. You can be a reviewer but not a critic and vice versa. It's however, not the same thing, and the people are not the same, unless they do both.
A critic does a critical analysis of something and judges it, this is appropriate for political and social issues for example. This is not what reviews are for, they are consumer products. This is NOT stopping something to incorporate both, it can have both aspects, but most of the time one side is lacking. Videogames should follow this same approach that the film and book industry follow identically, the separation of reviewer/review and critic/critical analysis.
This sort of thing is heavily emphasised in writing/art classes, they are not interchangeable by default. This is why some people often state they are not reviewers if someone or whatever claims they are, when they may be the opposite and vice versa. People misuse it every day.
Here is also an entry by the University of Vermont:
http://researchguides.uvm.edu/content.php?pid=9385&sid=61657