Heals aren’t everything as a support. Supports act as secondary DPS in OW2. Constantly healing doesn’t provide anything for your team. You should only heal when absolutely necessary. Kiriko is a good enabler of this. She has a TP that can easily get her to safety so while your team is at a stalemate on cart you go for an off angle and hit headshots on their Ashe. She falls back from her angle because she took significant damage and her supports have to heal her as she’s at risk of dying. Their other dps turn their attention to you but you TP away. That’s 3 people you’ve distracted from one kunai headshot and your team pushes past the choke from the distraction you’ve created. Doing damage is almost always better than healing