Hoping a dev sees this. The level 79 MSQ quest "The Light of Inspiration" requires you to have completed the role quest line for the job you are on in order to complete the MSQ quest, which is level 80. (We were warned this was coming, so I knew I'd hit it eventually, however....) In order to receive the 800K+ reward, you must have completed a level 80 quest. Obviously, if you're level 80, you can't receive the 800K+ reward.

The only way I can see to actually receive this reward would be if you leveled one job of a class to 80, did the role quest line, then leveled another of the same class (say, for instance, WHM and then SCH), then the level 79 quest would recognize you had done the quest line of the job you are on and give you the reward. Otherwise, you're simply eating 800K exp. So you would need to hit pause on the MSQ to level another job to 79.

You could say, well, it's just 800K. No biggie. Which I get, when the FATEs in the area are giving 300K, however...

Since I've heard this is the last level 79 quest before 80, and it has a prerequisite to complete a level 80 quest, why is this not just a level 80 quest to begin with? Just make it level 80, and give a warning at the beginning that to complete it you must have first completed your role quest line. This will save people a lot of head scratching, and possibly not cause players to pause near the end of the MSQ just to level up another job so they don't lose the exp. Some people might very well do that. I can't imagine that was the intent with this.