People that say this game is too easy

[Eldevern]

It depends. Ilvl changes a lot of things. How you are comfortable with the job you play too.

COIL without echo with minimal ilvl was clearly challenging. But you have to invest time and to be motivated. Not everyone is interested.
CT2 was challenging (how many wipes because of Scylla Flare?).

Some contents become fairly manageable as soon as you know how to dance (and that's probably why some people say the game is "easy")...

In 2.0 even Brayflox could be hard with unstuffed tanks.