The impartiality should be limited to those producing content for the BBC that is purely news or politics.
I mean what next Jo Whiley can't do a shift at a foodbank, Peter Capaldi has to hand in his labour party membership?? All while the head of the BBC News and Politics is shaping the rhetoric to be pro-Tory and giving money to Tory HQ??
People need to realise that the Beeb is a monolithic beast of an organisation, and the impartiality clause only applies to those that are involved in small section of it, the production of news and politics. You can't expect childrens TV presenters, music journalists, cameramen, catering staff or anyone else to keep schtum on politics because it's their right to promote what they want within the law.