Thank you for the wrong answer to the right question. There was never any suggestion that pilots should fly ignoring any legal requirements.
The VFR offset, unsurprisingly, is designed for pilots flying under the VFR. That means they have to abide by the VFR, or get qualified on navaids/GPS, or a PIFR, or an IFR.
The CAAP I quoted is a CASA publication giving good advice to pilots operating under VFR. It will become more important if the ADS-B mandate and subsidy proceeds and more aircraft are GPS equipped.
In the most recent definitive survey 89% of respondents indicated they use GPS for navigation, with a quarter of the group using hand held GPS. Therefore, the VFR track offset advice is a fundamental safety item.