We've all moved to LibreOffice, but I still know a number of people who use or are interested in using OpenOffice, just because that name has been around long enough. If you don't follow sites like this, you might not know that LibreOffice exists. When I mention that they should look at LibreOffice instead, they say "Huh?"
OpenOffice development was somewhat stalled for a while after the LibreOffice fork happened. If development is going to continue, I hope they pick up the improvements from LibreOffice so that everyone can benefit.