https://internetnz.net.nz/news/media-releases/2013/Significant-error-Telco-review-InternetNZ-Consumer-TUANZ
Copper already is significantly cheaper at a wholesale level than fibre. While I don't see the Govt meddling with the current wholesale prices further is a positive move, I can see how some will be upset they appear to be taking a cost pricing model based on something completely different.