Maybe the post was no longer hard wood and she wanted to hop on something younger?

Hayooooo! I kid, really but not really.

Her resignation is horribly overdue for a woman who believes she legitimately won an election. I've brought this issue up many times with people I speak with. It's definitely curious why she didn't resign her seat sooner. Even Biden resigned his by Jan 15, even if that too was a bit late.