If your job is to come up with banned words and they've stopped using the banned words, you've got to keep looking for more if you want to keep your job. I don't think anyone's real job at Google is to come up with the banned words, but some people see it as their big impact and have been commended for it in the past (by leaders looking to bolster their DEI cred in the fakest, easiest ways) so they keep going even when the words seem less and less ban-worthy.