i will return to you the question, why focus the blm only for 5-8% of the content? i don't say to ignore it, but reach a balance that will work all over the game.
for me the blm must stand at the top of the ranged dps yes, but be over melee dps? simply no... like said in the 2.1 we did get the situation where the difference of dps between ranged and melee was close of null... leading to raid not wanting any melee in the group, simply because it was safer to get a ranged that deal the same damage and less affected by positional and can still attack even when far from the enemy, able to take care of the add without move or (in the case of the monk) will loose not that much to move from the boss or positional.

i haven't said that the blm must'nt be strong, i only say, it's ranged dps, by default he is in safer place than melee, more risk for the melee need to be rewarded. for me the dps need to be in this order, sam, monk, blm first and the other that have far more utility and bring more stuff to the raid behind them.

i feel the balance of the game is plagued with the utility need over the basic damage of the group. they have worked hard to try to make the dps not that different, what is a bad idea.

and in the end, it's more about what your group try to accomplish, not what the other do... play what you love (even if it's a monk *cry*) and try to beat the challenge with your friend.

i'm not against competition, but when the competition lead to a meta that force people to play something only because is the best... we do loose the main purpose of a video GAME.

ps: if your group force you to change of jobs instead to try to overcome the challenge that was created for be completed with any group, you have a trouble...