Why do people avoid getting better at the game?

[Gemina]

Or you can get a Tank that knows what they're doing and can solo practically any boss from ShB-EW with little issue.

The last dungeon boss that I'd argue has any semblance of challenge is the Mist Dragon in the Burn

Care to test your mettle, bub? Come with me into a dungeon of my choosing. You tank, and I'll go as heals, and I'm simply not going to heal you. Let's see how you do. You game?