is Australia the slid impact-remnant of Earth's Second Moon?

Australia is so strange, so alien to this Earth in terms of flatness and rock age. Elsewhere, there’s almost uniform tectonic plate shift and aging, whereas in the Pacific there’s this flattened lump of land called Australia and NOTHING ELSE in the devastation zone apart from a few volcanic spurts of islandage; Hawaii, Indonesia, Polynesia etc.

Visually, while Indonesia and New Zealand form a nice impact/compression ring suggesting that Australia LANDED just south-west of its current location and slid into its present-day position, I really need this impactor to have landed in the centre of the Pacific and slid into its present-day position. If this were the case, New Zealand and Indonesia would be the Impact Remnants of the remnant splat that became Australia – and the video below does support such trailing debris for an angled impact.

Planets and other rocks in space could have the same makeup, especially with the same accretion disc radial locality. Look at the gaps between the planetary debris fields…
Saturn’s rings + satellites
Sun’s rings + satellites
…it’s all the same Solar System creation model.

I don’t know the slowest gravitational impact of two such bodies, maybe someone could email/comment the calculations, but I do know the Earth wobbles because of such an impact and the Pacific Region is literally ruined or eradicated due to such a possible ‘landing’. Is it possible that Australia was once Earth’s (nearer, smaller) SECOND MOON and eventually soft-landed under free-fall gravitational forces hitting the Earth and splatting like the lead impactor in a slo-mo bullet impact video, like this:

that bullet remnant on the last frame, “That’s Australia,” is my contention.