Well, actually, I would expect that to happen if the lawsuit was justified. Let's say there is building work at my company and my car gets damaged, and I think it's the fault of my company. Sorting that out should have no effect on my career.
She's costing her employer time in a legal defense either way. What company wouldn't get rid of a troblemaker like that?
Also, I would think filing a lawsuit for poor treatment by an employer while continuing to work there would only hurt her case, unless she's going to claim she has some form of Stockholm Syndrome with them.