Funnily enough the beach is called Avoid Bay. I had to track down that location via satellite maps and then walk 1km+ through scrub on kangaroo trails to get to the beach. Any 4WD evidence in the area looked to be very old and long-since blocked off. I'd guess maybe any other access had been by boat, but even then, most people would probably head to more accessible and just as attractive beaches instead.

Everyone has a right to experience it, and I had the same experience or close to it on countless beaches in that area. We'd need a lot more people visiting before it got to even a hundredth of Bondi.

Any touristed location will reach an equilibrium with its crowds. There's always an alternative for those not keen on the hordes. Go to Simitai instead of Badaling. The Louvre has countless alternatives to the Mona Lisa's room. The Grand Canyon has dozens of vantages. You don't have to walk far from the central area of Zion National Park to have expanses to yourself.

Some people take yet another photo of a popular attraction. Others visit an online discussion and throw another viewpoint into the maelstrom as though it achieves much of consequence. Each to their own.