A proposal like hers for a government issued bank account falls right into the federal surveillance state insofar as everyone's finances are concerned.
There's no better way to erode 4th amendment protections for your finances than a federally issued bank account.
It's not an unreasonable slippery slope to imagine that such an account would eventually morph to the point (1) where many or most of your counter parties are using the federal bank account meaning that they know about most of the transactions occurring in private accounts, and (2) where merely using a non federal account they have access to could be maligned as suspicious.
There's no direction these proposals head that don't result in more tyranny from a federal government that we have increasingly less representation and oversight over.
There is a vocal section of the Senate that views experience as a disqualifier. Particularly for finance. This might have been a trial balloon. It might have been part of a broader deal that fell through. It might be a red herring.