Wait, wait, wait: what do you mean by that? I'm thinking about purchasing the game, but this point got me curious
Here's hoping this doesn't get me in trouble...
1) Different starting attribute values by culture and gender
2) Different starting skill values by culture and gender
3) picking a religious affiliation is mandatory, and often not actually a choice. (It's determined by homeland). And it has significant mechanical effect.
3.1) Atheism and Agnosticism are NOT options in the list... but Evil is. (At least, in the GM section)
3.2) actively pursuing the religious believes provides STRONG mechanical benefits.
4) A number of terms used in the rules have offended non-playing observers in the past. Including witches, Warrior Maidens, Cymru/Cymri, Pagan, Wotanic, Pictish, and Evil. It uses them in historically appropriate ways. Greg is a historian and medieval lit scholar by training...
5) several published adventures have tests to avoid participation in post battle rape and/or pillage.
I've never had a problem with my players being upset, but I've had BIG issues with bystanders. And I've had potential players quit upon finding out about points 1, 2 and 3.