Imo, the whole game has some really breaking design problems.
1. Party sizes are to small, it should be 6, 12, and 18, not 4, 8, 24. 4 8 and 24 doesn't scale appropriately.
With 6 you would have 1 tank, 1 healer, 1 support healer, and 3 dedicated dps. Then going into a raid like BCB you would have 12, and end up with 2 tanks, 2 healers, 2 support/dps/healer and 6 dps.
That scales up proportionately making balance between 6 man content, 12 man content, and 18 man content (E.G.) Crystal Tower etc easier to balance.
It also solves a problem we haven't encountered yet, new classes. When new classes come out, The current classes will get left out of content because there just isn't enough room in parties to make all the classes relevant.
E.g. if there are 8 classes, and 8 man raid party, it's physicall imposisble to take one of each classs when a new class comes out, someones getting sat. Because new classes will be FOTM and everyone will mad dash to roll them. What is OP will get taken to raids and what's UP will get the shaft.
Secondly, the way lockouts work (making it impossible for us to run content on other jobs we have leveled without leveling a second character), you end up with this pattern.
Subscribes -> Get's Max Level -> Clears All Content -> Unsubscribes.
New Content Comes out,
ReSubscribes for 1 month and clears all content in that month
Unsubscribes for 3+ months till new content comes out
Subscrive for 1 month and clear all content
Rense and repeat.
E.g. square is loosing sub months, tons of them.
