It's still adding a whole new level to Kiwike lore, kind of like that in Wizards, there is an ancient era in which everybody was more advanced, thusly it might interrupt other lore with the whole giant mushroom clouds everywhere, and from what I can tell, Kiwike is a continent, not a planet, due to the fact of people being able to get to it through non-magical means, suck as walking. In addition, if someone's species is older than yours, and is native to Kiwike in their lore, but you say that it was ravaged by nuclear war, yet their species or they go back before that, and has no stories of nukes included in their lore, this is adding a whole new level that can topple other people's lore.