Shows how often I watch Corrie. In the words of Paul Merton, 'The last time I watched Corrie, Albert Tatlock was sent home from school.' It doesn't change the rest of what I wrote, though. To be a professional actor or actress requires intelligence. Almost anybody can summon up a half-decent performance occasionally in amateur dramatics, but doing it to a professional standard, week, week out, is a different matter altogether.
It also turns out that she is a good dancer. This requires several things: athleticism (she has quite an athletic build and seems in good shape), a natural sense of rhythm (this is inborn), plus the ability to learn quickly (they all have only a few days to learn a new dance), plus the ability to think on her feet under pressure (in case something goes awry in the performance). The last two are not physical attributes, they are mental. They require intelligence. That underlines my original point. She is far from gormless. None of the contestants is gormless. They wouldn't have achieved what they have in their respective fields if they were.