Maybe I’m just being too forgiving, but I don’t have an issue with this headline. For me, something being clickbait or not comes down to whether I have to open the article to get an overview or if I can get it from the headline alone. In this case, I’d say it’s the latter. You are more than welcome to your own opinion on that.
Frivolity makes absolute sense to describe the suit as frivolous, but just makes it sound a bit too lackadaisical for my liking.