User blog comment:IHHeroes/Changes going forward after Crisis/@comment-14250-20200116101947

One contrast I can see here though, about singling about the paragons as being the only ones who don't need separate instances:

Martian Manhunter is basically going around telepathically zapping everyone and essentially giving them the benefit of knowledge of the past reality, so I don't know how behind they actually would be...

If anything the paragons might actually know LESS since they seem to be the only ones without knowledge of how life went in the new reality (had to be reminded flash/SG were teaming up on same world for years, exmaple) whereas the non-paragons have that knowledge PLUS whatever it was that JJ input for them.