I don’t see any other publication doing this kind of analysis of themselves, pointing out the mistakes they’ve made in the past.
Even in this article they mention “The Economist was convinced by the false claim that Saddam Hussein was hiding weapons of mass destruction”, something they remind the reader of each time the Iraq War is discussed. I remember an article from 2017 that said the Economist got it wrong, while a less honest publication wouldn’t have.
It’s more remarkable considering that the economist’s articles and opinions are published without the authors details. So when an article gets it wrong, it reflects poorly on the economist as a whole. They can’t simply blame the previous guy, it’s their fault.
They’ll be talking about how they got the Iraq War wrong as long as someone mentions it even in passing 50 years from now. That’s candour I appreciate.
This is a very charitable reading of why The Economist does not have bylines.