one way to solve the trouble about the dungeon, and i did ask it while the beta, it's to put an ilevel sync... like this, no one can overgear a dungeon, you will always be in the right range for the dungeon, giving still some teeth to it.

other point CT and ST must be counted like a dungeon in the progression, i didn't understand why we did get a dungeon with reward i80 when we have CT!!! it was an huge error. CT is one of the content the less runned now, why? because it's long and you drop 4 part for 8 people.

if they had make it like this: 2.2 expert dungeon (i70) >CT (i80)> 2.3 expert dungeon (i90)> ST (i100)> 2.4 expert dungeon (i110)>...
the progression will have been smoother than what we have right now. the dungeon will have keep an interest longer and more important we will have avoid hunt giving i90 stuff and making the dungeon useless.
you still have the token for get more part of armor for be able to catch up faster, and since this content at the 2.4 is not locked people can farm at leisure for get what they need.

another point, i think the upgrade system from the 2.2 (oil and sand) must never come back, it was a huge error to put this like this.
finally, they need to add content that recquire the stuff max outside coil... or the people that do coil will simply be monster that will crush the challenge of the world.