Edit: 2017, not this year
> When pharmaceutical company Depomed Inc. of the U.S. said this month it is fielding federal and state inquiries over its marketing of opioid painkillers, a stock drop was likely to follow.
> But it was less expected, legal experts say, that shareholders would then sue the company for securities-law violations, alleging that Depomed made false and misleading statements over a more than two-year period leading up to the Aug. 7 announcement in its earnings statement.
A lawsuit about making false statements is entirely different than a lawsuit saying a company is insufficiently profit-seeking. Unless the article broke down how many of those record lawsuits were actually over low earnings (which I can't tell), I don't think this shows anything.
I think I disagree with you a little even regarding false statements suits, though: Just as a thought experiment: let’s say you lose millions in company X stock because they pull out of a market you think they should have stayed in. I would think going through the company’s public statements and claiming that you were mislead about their commitment to said market would be a decent angle from which to attack them. But that’s just thinking out loud, and I am no lawyer.