Simon
I, for one, absolutely love Asian newsreaders. Daljit Dhaliwal was very popular here in the states. I prefer her over Ms. Husain.
The BBC has a standardised pronunciation department, if there is a word that a newsreader is unsure of the pronunciation, they call down to the pronunciation department and they tell them how it should be said correctly. Thats why they all say words like "Chechnya" In the same silly voice.
Similarly, throughout the 1950s and 1960s all BBC announcers adopted the clipped upper-class sounds of received pronounciation and yet the accent is now only found in isolated pockets of Knightsbridge and the shires. Today, the BBC's pronunciation department only advises on difficult foreign words and presenters are advised to talk in their local dialects. Which ought to preserve language rather than lose it.
Knightsbridge today is full of Arabs rather than Sloanes. They don't speak RP.
The BBC recruits too many ethnic minorities. The number of ethnic minorities among the BBC announcers does not reflect the actual proportion of ethnic minorities in society. Far too many. In reality, England isn't full of Asians, blacks and Jews. The BBC makes it look like whites are the minority group.