Feature articles, by default, appear on any tiled page. However, the behavior is configurable. If you add a group to a particular page, the feature articles will appear there. If you don't want them to display, you will need to apply CSS to hide them. Use the following code snippet:

.ezd-portal_site-groups_featured-topics {     display: none; }

.section-index .ezd-portal_site-groups_featured-topics { display: none;}

or

.content-index .ezd-portal_site-groups_featured-topics { display: none;}

To summarize, the behavior you've described can be controlled and changed using CSS. This explanation is derived from Jorsek ticket 9777.