On their website I found this gem:
"Slavery is a tradition barely 3 generations abolished"
Well, there's a cultural bias if ever I've seen one. Slavery is alive and well in 2020. The last country to actually make it illegal only did so a few years ago. There are more people enslaved on Earth right now than at any point in human history. Maybe the IETF and these other organisations should get a clue about the present day and history before lecturing others.
https://inclusivenaming.org/language/word-list/