arena should not be brought up in this conversation. healers are killable there by 1 or 2 dps because of dampening and all cooldowns are used at once to take them down.
no dampening in bg’s and cooldowns don’t mean as much because of their actual uptime compared to the amount of fights there are and the fact the game doesn’t end if you die.
arena is basically dead, especially compared to battlegrounds. they may need to start switching their balancing tactics. the 2 are so different it makes balancing very difficult.
healers are way stronger in bg’s than arenas. that is just a fact. the problem is they need to be strong or nobody will ever play them.