thats because I'm too lazy to find a more precise guide on what to level, and I pretty much managed on my own by thinking and reading some of these stuff. and they're all links by the one who has been coming up with all these guide threads for us after all.
and unfortunately, as the 'veterans' have been saying, it's up to us to learn how to 'manage' to grind ourselves up to match the back-to-back events, since having breaks is not an option apparently.