Originally Posted by
NoctisUmbra
There clearly exist skills among classes that promote party play. You don't even have to go as far as Shroud of Saints. Remember, classes will be the dominant choice for the most part not only for solo but Light Party events as well.
Another point, as I made in my previous post, is that the job skills aren't primarily meant to provide exclusively party oriented bonuses. A lot of them are simply stronger or more unique weaponskills and personal buffs even. The idea is they are very desirable skills that boost your ability to do what you are meant to do on that job as opposed to staying as the class counterpart; WHM being more proficient at healing than CNJ, BLM better damage ability than THM, PLD better tanking ability than GLA, etc. What directly encourages jobs to be used in Full Party events is the lack of ability to cross-class effectively as a cost for obtaining those skills.