Why would Nemesis waste it's time and effort (not to mention the identity of its agents) to spring a couple of loser Rampires?
What made the Red Court a threat was their numbers, influence, and organization. None of which the Eebs have.
Theoretically, all it would take is the primary agent using an ignorant resource to free them, and then have another ignorant resource eliminate the "traitor" before questioning.
As to why make the effort, the Ramps were a formidable asset that can be quickly rebuilt. If the Eebs were freed (one way or another) right after the curse, then by the time of Peace Talks, they will have had a couple years to add to their numbers.
With the chaos of the Fomor/Council war, the Eebs could have taken plenty of people to turn. They might have been able to hold on to some of the old resources of the Court, in remote areas that don't get as much attention.
And if they joined forces with the Fomor, as other disenfranchised groups have, then they would have access to some of the Court's old resources that the Fomor seized, and would have the ability to work in the shadows of their organization to rebuild.
By the time the Peace Talks begin, they could have hundreds, even thousands, of Ramps ready to raid the talks along with the Fomor to surprise the attendees and enact revenge for their demise. Ramps made from werewolves and minor talents and everyone else the Fomor have been kidnapping.