It His Creation...
The first thought that came to mind when I read this was - "Why? Why would God wipe out everything?" As I thought about it, only one answer seem to come to mind, because He's God and He created it,thus He can do what He thinks is best. Outside of that, I don't know what else we can understand about it - we can't fully know the mind of God...But we can trust that from His perspective this was the best option for the good of those who love him (Rom 8:28)
