Limitless Blue (Extreme) - Why do many people still fail DPS checks?

[Obysuca]

Or always using the AoE Turret on single target.

>_> You don't realize how often I actually see this, or they'll never use the turret unless they need tp, then they ONLY use it for tp :/ Tbh, it's more efficient if you use bishop turret on 3 enemies, but 4 or more use promotion rook and spread shot spam, otherwise, just leave rook on auto attack for under 3 enemies.
Sure, mch isn't the most amazing damage, it's decentish if you're not bad, but the amount of bad mch hurt its reputation even more :/ especially when the bad ones barely do damage.