It’s a class action lawsuit for God’s sake. No different than ambulance chasing attorneys looking for money for a bus load of people whose bus was rear ended by a kid on a moped.
Class action lawsuits are intended as a way for individuals with the same grievances to band together to seek restitution or relief who would not otherwise be able to do so due to limited resources.
They do provide a path to justice in many instances. Have unethical individuals made a living misusing them? Yes, but that does not mean that a class action suit is automatically a fraud.