At no point in her excuses did she say she was joking. She said she is gay and a POC, that she is scared of the consequences of her actions, and that if she was Haitian she would be upset.
She actually never even says she was sorry, just weasel words like “it just exploded” and “this was not my intent” and “was never meant to be seen outside of Springfield.”
She minimizes, back tracks and redirects blame, but never once says the words “I’m sorry” or “it was a joke that got out of hand.”
Those are the actions of a bigot running away from consequences, not a person who made an earnest mistake and is remorseful.