I haven't followed it in enough detail to know the answers on the issues of class action and funding.
- if I recall, for Pigsford, the initial lawsuit didn't pass the threshold to achieve class action status. If I remember, Congress had to pass legislation allowing the suit to be treated as a class action. Apparently Keepseagle didn't have that problem.
- also my memory says there was some reason the Pigsford settlements (the first one) had to be funded by Congress instead of using the existing Department of Justice fund. The Keepseagle ageement is using the DOJ fund, which means claimants won't have to depend on Congress to act.