Ideally they should have given LibreOffice the OpenOffice name, but even if they had just said "openoffice is dead" then it would have been easy for people to find libreoffice.
Unfortunately, by taking over the OpenOffice name and absolutely refusing to admit that development has ceased, Apache has caused tons of confusion that has massively harmed libreoffice, because for years people who had heard about "openoffice" would see the terrible, out of date, insecure pile of junk being distributed by the Apache Foundation and not realize that the actively developed LibreOffice was available.
In the case of linux distributions it was less of an issue since they just switched to LibreOffice, but I wouldn't be suprised if there are windows users who are still downloading OpenOffice (and possibly taking one look at it and giving up and switching to Office 365).
Apache should have killed OpenOffice years ago but at the very least they should take it down and honestly apologize for fucking this up so badly.
Even ignoring the harm to LibreOffice it's just irresponsible for Apache to keep distributing OpenOffice when they can't even make new releases to simply apply security patches for years.