Being cynical, from a PR POV I think Susie bailed too early. If she’d stayed, kept apologising, kept learning, she could have recovered.
Leaving insta feels more a like a tantrummy flounce. Which I think belies her true character.
Tbh I don’t want to live in a shame culture where there is no redemption or way back from something you’ve done, barring the most heinous crime. Susie, despite being a sanctimonious prick, has done some good stuff where she is able and she did post. I don’t think there was a right way that she could have addressed the issue and pleased everyone, because the tweets were so awful, but I think if she’d stayed around, apologised further, did more work she would have shown she was truly sorry and regretful. She cashed out too early.