It would be great if the designer has the possibility to allow only some styles in the rich text editor (per richtext element), so that the editor only can add for example H2, H3 and Bold and Links but not H1, H4, H5, H6 and no Images and videos). To control it you can add checkboxes for each style at the richtext settings. Allow: ...
This will help preventing that the editor ruins our designs ;-)