a possible reason for your problem is that the articles you wanna show, have to have the Status 'Published' AND Access 'Public'.
Also the category needs to be 'Published', but I don't think thats the problem.
Pls could you check that?
Of course it's possible to request a feature! I'm always happy about ideas to improve the functionality. So thank you and consider it on my TODO-List ;)
Also I wanna thank you for the review on joomla.org.