Why does battle high exist?
It's PvP. Person VS Person. What is the point to not reward the players who kill the enemies ?
Do you really want to players to only focus destroying nodes/crystals and GC camp at flags ?????? That's boring, looks like PvE.
Everytime I saw someone writing on Alliance chat "Crystals are more important than kills". Something I'm sure about these kind of players, they NEVER had Battle High and Battle Fevers. These players, they only feed the good players.
Today, I killed 11 enemies, no death as DRK on Bordeland Ruins. 11 enemies, it's 55 points for my team, however it means also -55 points for the enemies. Only by myself, I brought a difference of points of 110 points between my team and the other teams. It's huge.
Besides, it's much harder to kill a tank with a Battle Fever (+50% of def). So, I can protect my healers without being worried to get killed.
I play PvP, it's for killing people. If I want ONLY to destroy nodes/crystals, better play PvE.