This is an excellent explanation of privilege.
It’s not excellent at encouraging healthy reactions. I think healthy reactions are gratitude and humility for privileges we enjoy; and compassion and generosity for those without. I think unhealthy reactions are feeling shame or shaming others (or citing books with purported supernatural origins to empower that an agenda).
I also found it very telling that even when race and gender weren’t used in the demonstration, their association with privilege was quickly and clearly observable.