I'm about Luanne's age, and I'm white. In a million years, I would never have known that "angry" was a trigger word for black women. Probably because I don't know many black women or read about racial issues as much as I should.
I have to give Luanne a pass only because how in the world would one know they committed a crime if they didn't know the act was criminal in the first place? I also give Eboni a pass for getting upset. If it's a trigger word based on experience and stereotypes, she has every right.
In the end, what we had, IMO, was Luanne not knowing that what she was saying