"Swoop in and patented it" is not exactly how it goes. There is a long back story to this with a lot of people discoing stuff to make this possible.[1]
CRISPR-CAS9 will probably be supplanted by something else. They're already working on it (hopefully with fewer off target effects). http://www.nature.com/news/alternative-crispr-system-could-i...
You can watch a video by Zheng (the patent holder) on how CRISPR works if you are curious[2]
I doubt she's livid, they won a lot of research prize money from their research [2] and she's probably collect money from patents from the company she started with the patent holder "Editas Medicine. Co-founded by the Broad’s Zhang (and also by Doudna, in more collegial days)"[2]
as with most patent disputes the lawyers are the real winners: "The Broad’s legal costs, paid by Editas, topped $15 million last summer. UC’s, paid by Caribou, have passed $5 million. Neither party has said what they have spent since then."[2]
[1]http://www.cell.com/cell/fulltext/S0092-8674(15)01705-5
[2]https://www.statnews.com/2017/02/15/crispr-patent-ruling/