Also, the limited scope is not unusual or special to the US either: Across the world there are different courts and jurisdictions, and very few allow some weird kind of global marque-and-reprisal.
If you're going to make cheap "USA uniquely bad" shots, at least pick actual problems.
By comparison, non-class action civil cases taken on contingency hover generally around 33%, though for factory line legal work (i.e. rote, high volume), like workers comp cases, it's usually much lower, IIRC, like 15%.
> Class Counsel will ask the Court for an award of attorneys’ fees not to exceed 25% of the Settlement Fund, as well as reasonable expenses incurred in the litigation. They will also ask the Court to approve a Service Award for each of the Settlement Class Representatives not to exceed $15,000 each. The Court may award less than these amounts. If approved, these fees, expenses and awards will be paid from the Settlement Fund.