I think one difference in the case we are talking about is that it is a pattern of occurrences of blood with one competitor, over the course of several horses, yes? It seems to me the rules for a single competition don’t take that into consideration and don’t really define a specific course of action (which we may not want anyway). Each instance is “explained away” as a fluke, but a horse that consistently bites its own lip to the point it bleeds is under unusual duress/stress.
We hope for good judgement in our officials and those at the top of the sport that we look to as role models. If that doesn’t seem to be happening, speaking out is one way to have an influence.
It’s an emotional subject but if we can’t step back and de-personalize how we express our views, this will be seen as a vendetta or a witch hunt. From what I have read this is not about the person, but the pattern of incidents and lack of response.
What frustrates me is that based on my experience in other arenas of life, you only have to pull out the Big Guns once. It is amazing what is possible to change when there are undesirable consequences.