Comment 12 for bug 45846

Certainly.
This kind of stuff is controlled by the toolkit, rather than the application. In fact I just fired up all my VM's and checked - neither Windows, nor GTK+ actually provide this functionality either. So, if this should ever be considered a better default than the current default (I really think this "bug" is more of a feature than a bug), where you cannot use shortcuts form within context menus, it would have to be fixed at either the Qt or KDELibs level.
And some more generic reason: bug 45843 is describing the general problem while this bug is describing the general problem in a Konqueror use case, which makes this bug less useful than bug bug 45843.