There shouldn't be a Myth cap because.....

[Ri_ri]

4. There can never be enough game content, the speed players consume content will always be faster than the speed developers can churn out content

We need way longer raids. 4 bosses aren't nearly enough, and put on some corridors with dangerous trash pulls.
The only part of Coil that resembles a raid is T1. Everything else is rooms with bosses...

I hope SE stops with the trials and Coil-style turns. No wonder people are so impatient, you zone into the instance, kill boss, and get top tier loot in less than 15 minutes.