Yes the game is too easy, but no matter how easy something is someone will always complain about it being "hard". IMO a lot of people want a "instant win" button.
After my group clears something once(and yeah we wipe a bunch of times while learning like everyone else), it's pretty much one shots every time after that unless someones client crashes or whatever. There's very little RNG involved in the current battle content which makes it easy to repeat without any issues. Final coil might not be the same, but I doubt that.