While that was a figurative disaster, if the NTSB wrote that then shame on them, that was NOT constructive reading. That read like a college midterm.
“After the captain stated they were in emergency electrical configuration, the first officer stated "yup confirm. Let's go back." Had the captain been properly managing the abnormal, and now emergency, situation, he should have made the decision to return to the airport rather than the first officer making that decision.”
Glad the FO said something or the captain would have pushed on to Vegas. <\sarcasm>