Her comments were definitely racist, but all the tweets with dates on them are years old.
Her comment on it:
"While it was intended as satire, I deeply regret that I mimicked the language of my harassers. These comments were not aimed at a general audience, because general audiences do not engage in harassment campaigns. I can understand how hurtful these posts are out of context, and would not do it again."
If someone admits wrongdoing when it comes to racism years in the past, I think that's okay.