I'd rather have one oath that is correctly and thoroughly implemented than several haphazard ones. I wasn't impressed with how easily and randomly an Oath of Devotion broke in patch 9.
Sigh...shortsightedness.
Perhaps they wanted to make a cool way to become an oath-breaker, but they just didn't consider the complexity of it. Auto-DM requires extensive AI for this new feature.
...Or just give the option to become an Oath-breaker, and call it a completely failed attempt.