I think all the time about how Echidna demanded an audience with Kanaya and Karkat before releasing the tadpole that completes the Genesis Frog, simply because she wanted to size up the people who would be guiding and watching over the new world and its trolls. I've always been inclined to take Echidna's positive appraisal of them seriously. And maybe some remnant of that inkling of destiny that Echidna perceived in them is still present even in a world that has (in kanaya voice) Utterly Eluded Their Constructive Involvement