For the record, here was the embassy's response:
In response to your inquiry, we would like to inform you that the documents listed in the email are suggested, and you only need to present those that apply to your case. We recommend following the instructions to ensure all information is uploaded into the system, and we remind you that on the day of your appointment, you must present the original civil documents that apply to your case (such as civil records, deeds, divorces).
So I think we're good - all documents that apply to our case have been uploaded, and my wife will have the originals ready to present at the interview.