Can you provide examples? I'm serious, because I've never heard her utter an original thought or demonstrate any kind of football or Bills knowledge at all.
Usually she says things are are super obvious, in as drawn out a manner as she can, or she'll completely restate what Tasker and/or Brown says.
I think she provides little value, personally.
They do it because they are full of themselves and like to hear the sound of their own voices. Simple as that.