There's definately places in NSW where you could experience SAD. Places in the Central West for example; Orange and Bathurst get quite gloomy during the winter.
The first half or so seems to stick with me a bit more than the run of songs following the title track. It's still early days though, so I'm sure after a few more listens it will all click for me
There's now an option to enable this, previously this was how Jerboa behaved with no way to disable it.