Earlier quoted context omitted.
Yes, this is a win for republican democracy, and a loss for "governance by experts."
If we had a parliamentary system, I would agree with you. But the actual on the ground reality is Congress does not represent the actual will of the people due to malaportionment.
Whereas before it was:
Do we have the political will to enact this from sea to shining sea via Federal legislation? -> YES/NO -> Can we enact this from sea to shining sea via fiat through an existing administrative agency? -> YES/NO -> Can we enact this from sea to shining sea via the SCOTUS? -> YES/NO -> Can we enact this policy gradually via the States? -> YES/NO
Now it is:
Do we have the political will to enact this policy from sea to shining sea via Federal legislation? -> YES/NO -> Can we enact this policy gradually via the States? -> YES/NO
The States themselves don't have the "malapportionment" problem, and insofar as Congress does, it's because the system was always set up for change to occur from the bottom-up, not the top-down. The EU refers to this as subsidiarity [https://en.wikipedia.org/wiki/Subsidiarity_(European_Union)]. Congress is structured in exactly the same way as the EU, as well as other federations like Australia and Switzerland.