Err, did you even read the first part of my reply which explains why having separate lockouts per job is not actually a good idea at all? And why did you level 9 jobs prior to setting foot into a raid? Even the levelling process for your alt classes (the same old fate grind festival over and over again) could have told you, that all forms of achievements are tied to your character and not to your job, as finishing one quest on a specific class/job automatically meant that this quest won't be available to any of your other classes/jobs on the very same character.
It's not the system that is at fault, as it does allow for real alt characters that behave just the way you and/or the OP requested. Just because you didn't level real alts, for whatever reason (may it be misinformation or just the lack of information at all), doesn't mean the system is to be blamed.
