Whatever your views currently on Scotland's historical referendum next year, either YES, NO or Don't know yet, to ban the debate necessary is a regressive step for a modern democracy.
Secondly Sir Jonathan mills claims that he wanted next year to be 'politically neutral', when he has chosen instead to commemorate World War 1, which is both before nearly everyone's living memory and arguably motivated by the Conservative party and is therefore NOT politically neutral nor as currently relevant in our lives at present.
Thirdly, the International Edinburgh Festival mission statement is 'to showcase Scottish culture to the world' and therefore to deny productions to be able to engage, inform and promote debate on the future of Scotland is nothing short of cultural dictatorship