Well, I share the sentiment, as many companies behave like this.
But it's actually a bit strange, as it is not "inner workings" – the feature is live!
So there should be no reticence in publishing that kind of info.
On the contrary, it would avoid customers' ire. (live = affects us)
And I'm sure they could find willing curators to update the guide, even if it's not an open wiki, happy to edit it for each new change.
It seems I might be on my way to opening another topic or two (guide update, curators, possibly something more pointed).
Feel free to beat me to it.