Bad weather

Several years ago, the BBC London radio station had a couple of women who read out the travel news - one was called Jules Wilson and another was Kate Allen. A few years later, both started to appear in vision on the London television bulletins. From this, it was apparent that Jules had a better face for television, but both were competent enough.

But now Kate is used to present the weather as well. Why? She has no professional background as a meteorologist, thereby undermining the the authority of BBC Weather presenters. She has evidently tried to improve her looks, but she's no Laura Tobin. So why not just let the news presenter read out the weather instead? I'm sure Louisa Preston could do it perfectly well.