Wagtail
Horse servant
Interesting comparison, and of course in reality there is no comparison between the examples you cite, and the video. However, just because it's not in the same league, does not mean it should be ignored.
Abuse takes many forms, some far, far worse than others. I'm not sure it's a competition though in comparing what is worse. No form of abuse should be ignored.
You don't come across as cold - merely disinterested and dispassionate.
Exactly, it's like saying that it is not that bad that a child got smacked across the face because some get sexually abused or even murdered.
Or to bring it back to horses, it is like saying it is not that bad that someone did not rug or hay up their horse all winter and it was now like a hat rack, because some horses didn't get water either.