I have no idea who you mean by "they" and who is hiring a "global company."
Are you trying to say that you think the so-called prospective shareholders' lawsuit which was developed seemingly seconds after the article was published, is legitimate and that actual shareholders "hired" a law firm? If that's what you're trying to say, clearly you are unfamiliar with the dirty practice of supposed shareholders' lawsuits, in which ambulance chasing attorneys tell a company that they're going to file a suit. The scenario is that often these meritless cases are settled cheaply by the company, because it's cheaper to settle than it is to hire lawyers. The lawyers get "legal fees" (a payoff) and the hapless supposedly injured shareholders get something like a coupon for a discount on a product (I was offered one of these for an Apple ambulance-chaser suit once -- I think it was for $2 good toward my next phone) or some other meaningless settlement that would have required the shareholder to spend hours assembling documentation. In other words it's legalized extortion to benefit the law firm.
So if you are saying that a law firm would not put out a press release claiming that they're "investigating" a possible case unless such a case were true -- why don't you come over to my place, I've got a nice bridge in Brooklyn that I'm planning to sell.
If I've misunderstood the point of your post, please tell me what you really meant. (NOT being sarcastic here)