Except litteraly nothing tell me it works retroactively like you're trying to say it does, sure if it dissapeared from everyone's memory and no matter what you or if you time travel and it's still gone, it's highter level EE than Goku survived but nothing in the ability page is telling me it does that, it just tell me 'concept' and if someone's existence isn't a concept, i don't know what is.
Azathoth is litteraly the character who is dreaming up their verse or something, how it works with verse equalization is very much not clear.