It makes complete sense for journalists to write things which are widely agreed upon in their group. The audience for journalists is always first and foremost their colleagues.
I do worry about overstating the degree of orthodoxy, though. Journalists regularly write things which aren't widely agreed on or report the news in unconventional ways; they may be reclassified as "writer" or "blogger" or "political commentator", but in most cases they won't get shunned or anything.
It makes complete sense for journalists to write things which are widely agreed upon in their group. The audience for journalists is always first and foremost their colleagues.