Had what already?
The organisation moved onto experimenting with weaker, female claymores because they were actually controllable, while male soldiers had a 100% chance of awakening.
If Rakki was a specimen that was able to achieve stability, or may controllability (since that parasite that infects him is supposed to interact with the host's control), then it gives them reason to experiment again on males to find their ultimate weapon.
They mightn't have moved onto manufacturing any other male claymores yet, but if Rakki turned out successful, he would definitely be worthy of being called their trump card.
These twins were foreshadowed when we saw the organisation pick them up a dozen or so chapters back. From memory, the only other pick-up the organisation made was Rakki.
I agree with Ark here. I thought I missed a few chapters when I read this. A linear story isn't at all bad.
(And even with a scar across her face, Galatea is still the hottest claymore around.)