User blog comment:Itamar20112/My thought on the wiki post-crisis announcement/@comment-35347921-20200117025635/@comment-2054358-20200122215956

And besides, if we dealt with big time travel events like Flashpoint and kept them on the same page, why should Earth-Prime be different? Because it's a new Earth? We should treat it like the parallel Earths like Earth-2, Earth-3, Earth-19, etc? Difference is that those worlds coexisted with Earth-1. Earth-1 was the last universe destroyed in the multiverse, so the paragons went back to literally the dawn of time to remake the multiverse. It was a time alteration that merged Earth-1, Earth-38 and Earth-BL into Earth-Prime while bringing back the other Earths with some timeline alterations. It's a multiverse-wide Flashpoint, not a parallel Earth with doppelgangers. Just look at how J'onn was able to restore people's memories. Cisco even made a ring for it!