What are my current benefits from dungeons?
- Leveling.
- Learning/Practicing a job.
- Tome stones.
- Grand company seals.
- Glamour.

The reward is not worth the effort.

If I'm gonna run expert everyday for my weekly tomes, I'd rather have the dungeons be 'fun' than hard.
Nice music, visuals, mechanics is what matters to me personally when it comes to dungeons. It's something I like to do while chilling.

I do agree that there is an issue with having easy only content, it does not help players improve.

Best thing SE can do is make solo content a bit harder (MSQ & job quests). Let players run into that wall where they have to retry the quest multiple times until they get it right. The key word here is solo, so the players can take their time to learn. No need to wait for queues or feel the pressure of failing multiple times in a party. In the end, everyone is going to clear MSQ & job quests thanks to echo buff.