The problem really isn't that Shatter is overly complicated, which some people in this thread seem to assume, it's just not fun to play for many of us.

The primary objective of any battleground in any MMO should be to kill enemy players and if you can potentially win without killing a single player, that's bad game design right there; that's really all there is to it. Seal Rock has its fair share of problems too, but you at least get some real PvP out of it.