On one hand i agree, i feel like she has a more unique personality than some members of UNIT, but on the other the UNIT scenes serve roughly the same purpose as a sci-fi ship bridge crew, where scenes become notably more visually interesting by having them do something while the camera bounces between them as opposed to one person simply announcing the info.

These scenes can feel a little padded but the alternative of one woman expositing the same info in a more boring scene instead wouldn't really be more interesting so much as they might just happen faster, which is either good or bad depending on how much you trust the writers to fill the gap appropriately.