Most likely the cloth polished the surface, making it shiny. According to their website; "Removes Scuff Marks & Water Rings. Cleans & Polishes." Sounds like it did exactly as advertised.
Try lightly rubbing the area with some denatured alcohol and a clean soft cloth. See if this removes any chemicals the Krazy Kloth might have left behind. If this doesn't work you will need to polish the entire top, making it all shiny, or refinish.