User blog comment:MakeShift/Discussion on post-Crisis changes to the wiki/@comment-3221148-20200117221220/@comment-2054358-20200121021450

And besides, are the characters whose memories were restored by J'onn really new characters? J'onn didn't even let them live a day in their new lives when they replaced their Earth-Prime memories with Earth-38, Earth-1, Earth-BL or whatever Earth they came from. The moment he touched Alex's head had Earth-38 Alex take over Earth-Prime Alex in a similar manner to how Clifford DeVoe took over the bus metas. Those metas were considered dead when DeVoe was in their heads, while DeVoe was considered alive after jumping from his body to Dominic Lanse. Well, until Ralph Dibny got control of his body back. If we are to consider the characters on Earth-Prime to be just doppelgangers, then how we classified people as living and deceased in Flash Season 4 while DeVoe was body hopping would make the Martian Manhunter look like a serial killer. And Earth-Prime Lena Luthor never even existed. Earth-38 Lena woke up on Earth-Prime confused on how the brother she shot was alive. J'onn didn't give her memories. She just woke up in a new world like Kara.