It appears that the explosion was caused when a track hoe operator struck the line. Of course this still isn't good, but at least a clear cause is known and PHMSA won't be investigating cause for an extended period of time. With the San Bruno pipeline explosion the issue was improper welds and corrosion, and it took a while to investigate before repairs could even begin.
I hope you are right.
I don't know how many more times we needs to see this pipeline go down before we realize how fragile our situation is.
When Katrina happened, the Atlanta airport, Charlotte, and several others were within 3 or 4 days of completely shutting down due to running out of fuel.