the op have raise some interesting point.
the end game is not really challenging. understand me, i don't say it's hard, i say it's not a mmorpg challenge! it's a dance challenge, we must learn the step for avoid the gimmick and survive the insta kill skill. mmorpg is more than gimmick fight... actually is not gimmick fight. but let's be honest, some mmorpg like WoW did put this in front for long...

they say random is not possible... i say is not true! i say they need to have some sort of random into the fight... we can't have fight like T5 with multiple phase with 1-2 gimmick per phase for a long time per phase... is not fun, is not challenging! it's boring! people say it's challenging because they don't want to learn to play them class or be able to adapt to a fight. they want simple and predictable fight.

i hope they will change them way to bring fight and make true mmorpg challenge! what the point to level up a class have tons of skill if we only repeat over and over a cycle.