Now I look at the article, I vaguely remember it, and I remember thinking that I would have been infuriated for by the ads, but, as you say, for a variety of reasons, none of which result from atheism.

surely she must have realised that many people who were offended were offended by the fact of advertising about closely held and personal matters of belief, as though they were comparative forms of soap powder, not the content of the advertisements?

Yes - there's something vaguely indecent about it, quite apart from the fact that it tends to result in a meaningless slogan (if you can dignify it with the name).