My Apocalypse Tutorial Had The Wrong Destination?!

... So far this Apocalypse has been going as I expected of a cliché trope ...Earth reached a certain timer or limit? CheckPlanet thus gets drafted (and shafted) into a bigger picture? CheckEmergence of mysterious forces like Mana and Qi? Double CheckWarning that monsters will start appearing? shite, I mean CHECKHumanity will be given a fixed tutorial period of relative safety in another dimension to learn the ropes? Luckyyyy! Check!...So what's up with this apology letter in my newly gained system ...