I saw the same interview and I got a different impression from it.
She did indeed talk about having spent 8 years in public service and the need to bring passion to the table, but it didn't seem like she was implying she no longer had the passion.
She also talked about her long-held belief in term limits and the benefit to government of bringing in fresh viewpoints of other passionate people. More like self-imposed term limits and a let-the-other-kids-have-turn vibe.
As plausible and acceptable an expalination that is, I have to wonder whether it was simply a matter of bailing before the poop hits the air circulator.
I disagree, of course because of this reason, she said that they need a person in that position with energy. This implies that she was getting burned out.
As for the Crap hitting the fan, this just shows your bias, and folks have been hoping that it will from day one of the Pres. Trump presidency. I am an independent and I have voted for both parties over the years, I vote for who is best. But I never hope for the president to fail, because they are the executive of America. I was in the service and served under Bush Sr. and Bill Clinton, those of us in the service serve both commanders in chief and have to put partisanship aside.
As I said, I got an impression from the interview. You got a different impression, which is fine.
As for my so-called bias, I am not advocating or hoping for a crap/fan moment. I am simply observing that based on the Mueller investigation, the possibility that a Dem congress will gain power and other events and trends, it looks likely to me that things will be getting rougher for this administration.
I, like you, am an independent who has voted for both parties. I, like you, want our president to succeed. I also served under two presidents (Carter and Reagan). I could not put partisanship aside in serving my Commander in Chief, because I was not and am not partisan.
Please be careful in slinging labels like "bias" and "partisanship" lest you expose your own.