Don't see why not, it's still using up thier healing surges for the day.
In 3.5, between-combat healing eventually became trivial via low-level wands. Outside of the preasure of combat, there's bound to be some fairly efficient ways to heal in 4e, too. If there's a per-encounter power or at-will power that heals (however little) without using a surge, it'd be more 'efficient,' for instance. And, knowing game designers (who are always strapped for 'unique' ideas to meet thier suplement-a-month schedules), one'll show up eventually...