If the aim is to engineer a 'paradigm change', maybe it should have been tested a bit more first. Something like the old charter-city idea. It is a mistake to look to the political sphere to sustain a grand paradigm shift. They change direction every couple of years, and they aren't very technologically inclined right from the get go.
As it was, the NBN rollout looked a lot like a desperate and poorly planned giveaway to the independent electorates where it was first rolled out. Might even have been able to do it in a bipartisan way, although that is a lot to ask for, if not for that. As it happened the NBN was a political stunt on introduction.
I spent 6 months living in a house with no internet, waiting to get connected to the NBN. The house I rented before that had ADSL and was fine. I couldn't really tell the difference between ADSL and fiber, but the 6 month break from the internet in between does make a comparison hard.
Some people get unlucky and don't have a good copper cable. They aren't normal cases. The copper network was fine. I hope your troubles on rainy evenings isn't too bad, but it isn't proof of anything much. Except maybe that nobody is stupid enough to maintain a cable that is about to be ripped up by the government.