The jury deliberated for 2 days, so there were some serious arguments to deliberate about, and thus this was not a frivolous lawsuit.
Lawsuites like this impose a cost of litigation but in the long run they give us something more important, something other places like Korea or China lack. This advantage is the prime reason the Silicone Valley exists in the Valley as opposed to some shithole where laws are questionable and judges go to the highest bidder.
In this example, the lawsuit tries to establish equal treatment of men and women in the workforce. Women comprise over 50% of population and any country that can tap that talent (and most countries cannot) suddenly has access to 2x the number of capable candidates, a tremendous advantage. Most of these lawsuites are impossible for lack of proof, but if something is so obvious that it is provable in court it would be a waste not to persue.
Now imagine a society where all the respectable and compensated positions are given to communist party member's cousin's son-in-laws. All their talent rots in slums. This is the current situation at some 75% of the world. Good luck starting any successful ventures there.