 Isolating the damaged section via a remotely operated valve upstream of the pumps could have ended the incident prior to ignition of the vapor cloud and would have definitely reduced the severity of the situation.The CSB recommended that Formosa Plastics needed to revise policies for their hazard analysis to have a better evaluation of vehicle impact hazards, fireproofing and prevention or minimization of hazardous material releases.CSB also recommended fire resistant clothing for workers in any units at the Point Comfort complex that had a risk of flash fires.