Yeah... I mean, not all the time, but occasionally. We don't know if someone is in trouble until after they've been hurt, usually, so a healer can help the victim and the person who went to help them, if they got hurt too. Kururugi-kun thinks the healers are really important.
[and a glance up at Rapunzel. "too," does that mean] Can you heal people, Zelle-san?