PvP or lack thereof
Observation: there is little to no PvP
Suspected cause: there is only one setup for winning PvP: banshee mallard(?) 1/2-shotting
If this is so, then the underlying problem here is the large discrepancy between player and mob HP. As you progress through the game (and levels), the monsters that you fight often have multiple times your HP. The whole combat system is adjusted around this, resulting in 1-2 shotting and player dissatisfaction when the fight happens between players.
Proposed solution: either scale down player damage and mob HP, or scale up player HP and mob damage. This would mean that many more hits would be required to kill a player, both giving them time to approach (warriors) and time to apply heals.