how people see film critics

A commenter at the Internet Movie Database had this to say about the film The Stoning of Soraya M.:

It may be too visceral for critics (also like United 93), but film lovers should definitely seek it out.

What does it mean that a film might be “too visceral” for critics? Why does there exist the perception that critics are not lovers of film themselves?

Of course, this is merely one commenter on a site not known for a high level of conversation among its users. But the attitudes expressed here are not at all unusual. What should — or shouldn’t — critics be doing to counter such ideas?