I agree that the perception probably was that the only people who would be affected by the poor maintainance would be those evil red-state voters between Oroville and the Butte. They paid their taxes, but the teachers pensions, illegals and trains needed it more.
But as the Californian elites are slowly discovering: if Oroville ends up going off-line because of this, then it’s going to be bad for them.
I don’t think there’s going to be a ‘worse case’ un-zipping of the spillway, or a collapse of the emergency spillway.
But just taking this dam down to maintainance levels for a year is going to have a profound effect on water availability in CA.