I'm referring to the single data point of Goulburn - Marohasy and the IPA are looking at the trend lines of the homogenised data and raw data from one location as if it's significant. Presumably with the intent of using it to discredit the BOM and saying they're manipulating data to support the pro-AGW case.
The temperature trend for a single location says absolutely nothing other than what is happening locally so is of zero significance taken in a wider context.