I was about to snark that this was done by a polling firm who works for political parties whose main opposition are also faith based, but as a finding to say 2/

I was about to snark that this was done by a polling firm who works for political parties whose main opposition are also faith based, but as a finding to say 2/3 of people can be appealed to based on their faith in something, that's an important and valuable number. The people who believe nothing are indeed in a minority, and they are also in power, so the tone of the article was likely to make believers of any faith feel isolated instead of reminding them that they are a majority.