That's a funny stance given the context in which the material was introduced: as evidence that powerful people are racist "by their own admission". Doesn't sound like the no-big-deal definition of racism they might have thought they were confessing to.
It also suggests it's up to session-organisers to decide what justifiably humiliates a person.
Most people (luckily) perceive racism to be a bad thing. Being forced to publicly confess to being something you should be ashamed of is the definition of humiliation.