Hi @cristibanciu our plugin adds the images, it does not affect other parts of the RSS feed. Our plugin is usually used in email services, and they would include ways to include different parts based on the merge tags in the template. Our Premium version does have a way to add images without adding it to the body text, then you can remove the content merge tag, and use only image and title merge tags. We have a free 14 day trial of the premium version.
For affecting the RSS feed itself, you may be able to find other plugins or code snippets that remove the body text or excerpts.
Let me know if we can help on this more.