The actions that resulted from that were the employers' fault. If she claimed they molested her (which is illegal and can result in jail time) when they didn't, then you have a point. But the comment they made was uncontested and the employer decided, for a multitude of reasons including the recent matter, to let the guy go.
What if the employer was ready to fire him already, and this was the straw that broke the camel's back? Is it her fault that he was on thin ice to begin with?
The difference is the one between negligence and manslaughter. If your negligent actions result in something else down the line, you are still, in part, responsible.
There can, and usually is, more than 100% blame to go around.
She wrote: "I'm sorry to hear your employer deciding to not to work with you on this and I hope they reconsider, bring you back on and dealing with it constructively." (emphasis mine)
I think that's the most we can expect from her regarding the guy getting fired. She didn't fire him, and she clearly expressed that she didn't think he should have been fired over this.
If anything, the overreaction by everyone involved merely proves that the issue of gender in the industry is still significant.