"good or enjoyable" Like the two are the same thing....

No, Clinton. That's why I said "or".
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As for "And how do you think they EARN those jobs? By showing that they are knowledgeable in that subject..."   

The important thing is that the editor, or the accountants (or whoever runs the business), has decided that the column helps to sell papers, or to get advertising revenue, or whatever. They may be right, they may be wrong - but there is no reason to assume that "being knowledgeable" has anything to do with it. If the critic is actually some good, that is a bonus, a lucky accident even. Just so long as that doesn't get in the way of selling papers etc.