From what I saw only one email can be added, but even if it is the case, an email redirection to 3 guys is good
I would disagree, even if the case is not yet there, the wiki is alive, so even if you copy and paste a good page to the documentation, at least the wiki must keep it for enhancement.
Ok some works to do 
good, moreover discourse/wordpress/administrator manual must display the link in a visible way