Some prissy companies not wanting to advertise here because some people say cunt
And, as has been mathematically proven, our level of "cunt" is pretty consistent even in times of stress. (Unlike "fuck".)
In all seriousness, the Economist also does an awesome weekly newsletter called "Off the Charts" where they talk about the how and why of some of their key data pieces/visualisations of the week. It's probably too much to hope for that they feature this one, though