Polly Toynbee at the Guardian has this to say:

As my term as British Humanist Association president comes to an end, a few words of advice to my successor, Jim Al-Khalili

‘If you’re not religious, for God’s sake say so,” we implored, and many did. Over a quarter of the population registered as non-believers: more might have done were the census question unambiguous about whether it meant cultural background or personal belief. My term as president of the British Humanist Association ends this month, but gladly I hand over to Jim Al-Khalili, the distinguished professor of physics, writer, broadcaster and explainer of science. With atheism as the second largest block, he will be in a stronger position to see that unbelievers get a better hearing.