dude...
"Reflection maps" are the most common method in most games. Those usually are sky cybes/spheres.
Some game have real time reflections, those eat a LOT of performance, easily done in single player games but would mean a overkill in a MMO. Looking at a reflection you would basically need to calculate and render the world double (reflections have a different perspective)
Now a good deal of people already have hardware issues running this game and you run around asking for reflections on water surface...

The water as it is does not look bad at all.
Stop trolling