I've noticed that no matter what a BBC newscasters ethinic origin they all have same generic BBC accent. When I was in Brunei and Malaysia a couple of months ago watching the English language local TV news, the newscasters there all had a generic BBC 'British' accent. They'd obviously all studied/been trained at the BBC.
Whatever we say about the BBC, it is still one of the most highly respected TV organisations on the planet. the left wing bias does annoy me sometimes, but I remain a fan of the BBC and am proud of it. Whenever I'm abroad, I always watch BBC World if it is available
TBH, I don't care what sex, ethnic origin or sexuality the BBC newscaster is, as long as they are inteligible. I'm more interested in the news rather than the mouthpiece.