Board Thread:The Flash discussions/@comment-9346948-20161012044349/@comment-3423279-20161014060049

Zoom's time remnants were artificial creations when Zoom 1 ran back in time half a second to before he originally did so, therefore Zoom 2 never does so and Zoom 1 is a remnant, dying to allow Zoom 2's goal to succeed.

I think the Thawne we saw in Flashpoint was accidentally fed information by Barry.... idiotic heroes.