The logic for all of this is very simple. Whenever God allows/permits/creates/sanctions a major catastrophe/war/disaster/epidemic where huge numbers of innocent people die needlessly, it is a time for joy. It means that very soon now God is going to personally slaughter billions of innocent people needlessly, so a bunch of book peddlers can occupy the nice houses left over and pet lions.
It may sound a little strange to people "of this world", but it IS Bible-Based(tm) and so therefore it must be true. Only people "not of this world" can understand this because they live in another world all of their own making.
Farkel