The point is she admitted it was a mistake.
Compared to the current "conservatives" on the SC who have never made much less admitted to a mistake, she is a gold standard. Plus she cared about the reputation of the SC and understood it's claim to legitimacy rested on their integrity and adherence to the law.
For the current "conservatives", it is always someone else's fault or a conspiracy by the left or a witch hunt by the Democratic party. They do not care one iota about the SC beyond what it generates for their influence and bank accounts.