Its ok lol, this whole catastrophe was so complex that the NTSB ... seems like it had to redo its whole report, or maybe a better way to say it would be that their initial report was incomplete, and the later report hsd a loooot more, and some just actually different analysis and conclusions.

There were many, many contributing factors to this.

ATC was overworked, made a mistake.

Later tried to correct it, but it likely wasn't heard because a huge truck hauling water... well its diesel engines spooling up are very loud, inside the cabin.

Systems... didn't specifically fail, they just didn't work correctly, due to not being fully implemented.

The drivers of the truck could have paid attention to the red strip of lights infront of them, instead of ignoring them - its possible that if they asked ATC 'hey why are the DONT GO lights on, ATC?', the ATC might have looked at the system controlling that and seen 'oh, the lights are red because a plane will be landing in 45 seconds'.

Fustercluck.