So my first take is that there is something off about all WYSIWYG editors going back to Microsoft Word. Like you try to select some text to cut-and-paste and you can select the whole text
except the first letter but if you try to get the whole text it suddenly jumps to select the whole document. Or hitting the "B" button sometimes bolds the paragraph above where you are, etc. It's like there is something wrong with the conceptual model behind all of these things.
So when I read "Group is purely structural (for balancing) and has no semantic meaning" my blood runs cold. Here's a mysterious something hidden in the document which bizzare misbehavors will be centered around. Like maybe when I try to select something and I got something else, it is one of those groups.
