Except for the fact that this tunnel was trying to get developed in a way that first off, violated California Environmental laws, something that the government

Except for the fact that this tunnel was trying to get developed in a way that first off, violated California Environmental laws, something that the government owned and built metro would have to spend millions of dollars and several years on in order to complete, and second, it would've increased the complexity of building an already budgeted heavy rail line under that part of the city. LA is very capable at making decision that work for the greater good as the county has a sizable amount of power around taxation, and manages the regions transit authority. The parts of the region most notable for NIMBYism are largely only effective at delaying action rather than completely blocking it unlike in the bay area which has multiple counties to deal with.