She once stated that she's smarter than their father. even barring that Franklin reads her mind for some crazy abstract invention and warps it into reality... Tiamut/arishem is phucked.
And why should Franklin use her as a proxy to come up with something instead of just erasing them in the first place? Also that's not soloing on Valeria's part what you just described there.
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“I once had an entire race killed just to listen to the rattling of their dried bones as I waded through them.” —Volrath
Valeria is supposed to be near/greater than her father in terms of intelligence... Reed has already shown given sufficient prep he can handle celestials. I was thinking of using Franklin more of the enabler in that scenario basically using his abilities to near instacraft what she is thinking.