The angle brackets may also indicate missing fonts. Angle brackets in other Creative Suite applications and especially in a pre-flight report show the use of a font in a document that is not loaded on your local machine. As you can see in your image MV Boli has normal text as well as an icon based component (for shorthand) yet it is still shown within angle brackets.
Most Adobe apps with show an astericks for a missing font (*fontname), not the angle brackets.
In all cases I can recall, the angle brackets indicate the name not being show in a sample for whatever reason.
I agree with you that the use of angle brackets to indicate a symbolic font is accurate. However, the use of angle brackets to indicate a missing font is also accurate.
From a survey of Adobe Illustrator user's guides and professional printing guides - "Illustrator CS shows a font’s name in angle brackets to tell you if a font is missing. Fonts that have been substituted will [also] display an asterisk next to their name."
From a survey of Adobe Illustrator user's guides and professional printing guides - "Illustrator CS shows ...
This is the online manual, http://helpx.adobe.com/illustrator/topics.html how am I supposed to find where this is explained?