[nznog] Telstra's Outage

Hi, With Telstra's outage taking out the Northern and Western suburbs of Wellington. For what I gather it was a single truck crash bringing down the overhead wires. A single truck crash is a single point of failure, but I remember this email http://list.waikato.ac.nz/pipermail/nznog/2005-June/010158.html which says: "For a start, it takes more than two fibre cuts in the North Island to disrupt us" And also remember back early in the year when one slip on the Hutt motorway took out all services in Wellington. What is so wrong with Telstra's network that single events can affect so many people, when supposable it takes more than two fibre cuts to disrupt them? David