Disclaimer: Subjective, no offense intended. This is once again proving that, while I understand the language, probably shop the same things, the USA is a strange place for me. This 'just sue' culture seems weird. It seems that the whole point is to run to the court and claim 'He did something wrong. Please spend a lot of time to check that I actually have a point and if I'm lucky, please define a grossly exaggerated…
That case is just a terrible example of frivolous lawsuits because it had plenty of merit. Actually the vast majority of lawsuits labeled as frivolous, with huge judgement, tend to skim over the details and make it look like the plaintiff hit the lottery with a mild inconvenience: "Oops, she spilled coffee and became a millionaire!"
While our legal system could certainly use a lot of improvements, lawsuits that actually go to trial are being vetted quite a bit.