I really think you should be fine especially with the note. Because, I figure we aren't the only people in this situation and mine didn't cause an Issue. I didn't even write a note. I literally just included the new ds-160 confirmation page to the other documents and the consular agent figured it out. I think in your case, it is the backlog. There might be different piles for different visa category and mine could be moving faster because there aren't as many B2 renewal as there are H1B. I truly hope for good news for you guys soon.