I think the government issue has already been decided by the FAA.
In the courts with the USA this is a civil suit for damages.
She probably will be found as not qualified to preflight or inspect wings for icing as she has had no training in such.
Years of looking at the wings don't count.
The lying to the cockpit will put her in deeper shxt.
I am not a lawyer but think she will be shelling out some bucks soon and if this story is true she should.
Down side to this is that it may put the fear of God into any other flight attendant from speaking up when really they should.
So no one really wins on this one.
Another benefit to promote CRM.
All this could have been handled better.
But I am not surprised why the company wont support her.