I think that's the change from 3.x
In 1e/2e, it made sense to have a cleric use their ealign slots to actually heal because quite frankly, it was th e best option for the cleric (few other options) and the damage done by monsters wasn't that intense that an appropriate level heal would not negate all of said damage.
When 3.x came in, not only did clerics (and druids) have better options than to waste a round to heal, but the fact was that healing became underpowered with regard to the damage done by the appropriate level foe. Take a look at the difference in damage a 11CR11 foe can do in 3.x and compare it to 1e/2e where the self samae monster was attacking.
In 4E, it actually is cost-effective to actually heal in combat.
I think the big difference is that you don't need a healer AFTER combat in 4E. The characters can heal themselves via the second wind mechancisevery 5 minutes. This is in direct contrast with 3.x where you either had a healer blow their slots all on healing AFTER battle or you had a party with the ubitquitous CLW wand.
In 1e/2e, it made sense to have a cleric use their ealign slots to actually heal because quite frankly, it was th e best option for the cleric (few other options) and the damage done by monsters wasn't that intense that an appropriate level heal would not negate all of said damage.
When 3.x came in, not only did clerics (and druids) have better options than to waste a round to heal, but the fact was that healing became underpowered with regard to the damage done by the appropriate level foe. Take a look at the difference in damage a 11CR11 foe can do in 3.x and compare it to 1e/2e where the self samae monster was attacking.
In 4E, it actually is cost-effective to actually heal in combat.
I think the big difference is that you don't need a healer AFTER combat in 4E. The characters can heal themselves via the second wind mechancisevery 5 minutes. This is in direct contrast with 3.x where you either had a healer blow their slots all on healing AFTER battle or you had a party with the ubitquitous CLW wand.