Actually, the steps mentioned above is simple enough for me. Maybe need some getting used to since you are used to different application. It is not like you're going to change a wallpaper every few minutes. Well, at least not for me. If I am going to change it every few minutes/hours. I'll use the playlist option.
Just my way of thinking. Anyway, I have added your request to the Stardock Support Team for their review and recommendations. We really do appreciate your feedback, Thanks
Stardock Community Assistant