Shirley Ballas at the Pride Of Britain Awards on Monday nightStrictly Come Dancing judge Shirley Ballas is standing firm after facing criticism from some viewers over her particularly stingy score for La Voix during last week’s live show.Over the weekend, the Drag Race UK finalist landed the lowest ever marks for a week four performance after her Cha Cha Cha routine went a little awry.While Craig Revel Horwood, Motsi Mabuse and