Neo's argument is what you should seriously consider. It shows you a logical link between turbulent historical times and a flurry of end-time predictions. So one could expect there to be a close range of predicted dates focussing on those very times. That drastically cuts down the possible dates to use if something were to happen.So by a simple and logical prosaic mechanism, you've made a hit much more likely. Its not that hard to attribute it to chance then.
Now if you're looking for a prosaic explanation that would be so specific as to pinpoint "1914", then I don't have one. But there's all their number juggling with 0 and 607 that strongly suggests it was all just chance, but they wanted to believe it was a real hit.