It gets much better around endgame, they designed the early dungeons to be easy.
I don't exactly understand why... durring the early dungeons people just walk through and hit a brickwall when it comes to endgame.
You pretty much need a static to get through most of the content, you won't be able to random the new coils (Raid instance) and expect to do well.
The Extreme mode primals are pretty interesting too.
If you seek challenge in this game you won't be disappointed lvl 50 delivers.