I'm reading some of the healing spells, and while there seem to be regular targeted heals...there are a lot of heals that require freeform targeting, people running into specific areas for heals, or even the healer running around marking players for a heal when the effect wears off.
They mentioned in a video that targeted heals would be less efficient/powerful then the other heals since they are easier to cast, this will either be total chaos and annoying or extremely cool.
They really seem to be pushing the idea of movement and freeform targeting even in the healing department.