I think it would be a mistake for them to give up on 1914 so soon after their (very poor) attempts to defend 607 in 2011 and 2012.
I thought the same initially, but then I remembered that neither of those two articles in 2011 made a single mention of 1914, or even why the 607 date was so important that they had to write a two-part article on it. I don't remember the one from 2012.