User blog comment:MakeShift/Discussion on post-Crisis changes to the wiki/@comment-43707041-20200117071448/@comment-807326-20200117114601

You put it exactly into words - it's not the same Earth and it's not the same Alice. That's like Earth-2 Barry offhandedly mentioning some event in his childhood that also happened to Earth-1 Barry, and we assume it happened to E2 exactly as it happened to E1, which is incorrect.

The different timelines argument has no credence, because they're not differing timelines of the same universe. Similar universes, albeit not the same. But I'm also open to hearing any other arguments.