It very clearly wasn’t negligence- she cited plenty of other sources in her work that she didn’t copy word for word. She only left out the ones that she quite directly copied language from and did so on multiple occasions.
The review board let her off easy, giving her the benefit of doubt towards her intentions because she was the esteemed president of the university.
So if your definition of a quotation is something written word for word, whether it is cited or even at all distinguishable from her own work (read them yourself, they very clearly aren't distinguishable at all), what do you call something where she very clearly doesn't copy the original text word for word but instead rewrites it to better fit in with her own prose without ever citing it? Maybe something like changing:
“...the statistical correspondence of the demographic characteristics and more “substantive representation,” the correspondence between representatives’ goals and those of their constituents.”
to
"...the statistical correspondence of demographic characteristics) and substantive representation (the correspondence of legislative goals and priorities...”
It's not a conspiracy theory to suggest that the review board might've treated her differently from any random undergraduate because of her status within academia. That's just human nature, it doesn't even require intent to do so.