She is still liable for her actions, this does not make her not be held liable and won't get her out of jail. This is to see if the venue that served the alcohol is also liable It makes the people who lost their houses possibly get back some of the money they are owed that she most likely does not have. Unless you think the type of person who gets drunk at a concert and blows up houses has 15 million laying around.

It's gonna come down to what specific actions the venue took to stop her from driving away intoxicated, if she was served while already intoxicated and what they did (or didn't do) when she left while being intoxicated. If being drunk in public is a crime than the bartender is an accomplice to each drunk that walks out of the bar.