Well, let's look at this from an attorney ethics standpoint.
It's a violation to file a frivolous action. Check, we've got that.
It's a violation to file an action that's barred by law. Check, we've got that too.
Due to unethical filing of a baseless, legally barred action, your greedy idiot clients now owe the defendants a mid six figure sum.
I'm thinking the attorneys involved should be paying at least half of this, in addition to being disbarred for at least a couple of years.