@nolimitire_ Also, he definitely sees itachi as a big threat. Possibly an even bigger threat than Pain. But he knows he’ll win because he knows more than Itachi. That bit is clear by the first statement you quoted.
@nolimitire_ that he kept a spare Sharingan, she didn’t know of izanagi, most importantly her plan was based on his time limit, and she didn’t know he had Hashirama cells and could extend it. The same argument can be made for Jiraiya v Pain. Information.