why need CLI console to use GUI KMail Help?

When I need help in KMail, a menu offers help and I want to use it. I’m in the GUI already and nothing tells me that I need to switch and use the CLI (command-line interface) in a console (per a forum answer at https://forums.opensuse.org/showthread.php/391430-Khelpcenter-for-OpenSuSE-where-do-I-find-it?p=1848523#post1848523), so I’m likely to forget that method on the rare occasions I need it. Invoking the menu should open the promised Help file (cf. a bug report thread at https://bugs.kde.org/show_bug.cgi?id=372973). How do I get this intuitive method to happen?