When adding web content widget to a content fragment in edit mode, the overlay that appears filling the entire fragment prevents access to the "edit web content menu" in the ellipsis menu. Having this menu in the portlet topper gets around this issue. Unfortunately the user is not able to edit web content in a content page in edit mode because of this overlay!!
The edit web content menu is accessible.
The ellipsis menu briefly flashes before being covered up by a white overlay and a blue cog icon. To edit the content the user has to exit edit mode which is not intuitive.