I agree. Take Daljit Dhaliwal for example: She did outstanding work for ITN and BBC World News running down international events driving the world to war, candidates with skeletons in the closet, environmental disasters...then she was picked up by CNN and disappeared.
Although I believe the reason was that the competition bought her out to protect their ratings (CNN was losing cable viewers to ITN), the net effect is the same as the article you posted: one less real reporter who drills down into the issues that matter.
Besides, she was such a babe. BRING Daljit Dhaliwal BACK!
http://zapatopi.net/daljit/gallery.misc.html