Well, they could make healing suck less to do.

I main healer in PvE, and my biggest issue with PvP is targeting and Range. There are not alot of heals anymore that are instant and none of which are spammable outside of Lightspeed combos. This means I have to get super close to targets to heal them because they oft run out of range mid cast (I feel your pain Eda). So more than half my casts are fails.

Meanwhile, on SMN, it doesn't matter who I hit, I can kite whoever is nearest me until they melt. Guess what I play in PvP (Hint: It isn't the healer)