User blog comment:MakeShift/The Crisis and its impact on the Arrowverse Wiki/@comment-38932496-20200128061709/@comment-2054358-20200128210626

But wouldn't teams on Earth-Prime be made up of the same Earth-1 characters? They are the same teams if they have the same people. Unlike objects and locations, they aren't built by new materials from the rebirth of the multiverse, they are a group of people working together. And since we determined that everyone on Earth-Prime are the same people from Earth-1, Earth-38 and Black Lightning's Earth, what's different about the teams that warrant splitting?