It would be beneficial to have Description that pulls globally like Category, Comments, Date, Import ID.
My guess that it is not included is because there are field-sets that are customized by the user but I'm sure you could convert those to strings and give us the ability to export them.
I don't want description as a sub-category to Specific Attribute, I'm saying it should be like Category, Comment, Date and Import ID are and query all the data listed in Attribute.