I don't know, I understand his concerns, but I don't personally trust that what we'd get would be better than what we have, in total.
There are states who absolutely need federal oversight, or even just management, of their elections, because they've shown repeatedly that they are in the business of deliberate and persistent disenfranchisement. Then there are states who do much better now than any standard that a federal "bipartisan" commission would push in an emergency...
And who decides if it's an emergency? The commission? The President? SCOTUS?
It's tough because Federalism is a bad system, and creates these problems by its very nature, but this doesn't change or correct for that system, it just creates another actor with vested authority over elections.