Quick question to Riot about Soraka's Rework

I love it so far, but I was reading your post on her and I know you don't want percent healing on her Q, but what if enemies hit in the center on her Q healed her for 10% of her missing health? So** she won't be fully topped off by health** but when she is low, she can stay in lane to heal her ally enough. Right now, I don't see many reasons why hitting enemies in the center is better on her Q, all it adds is a small slow and a little more damage (which is negligible late game on support Soraka)

What do you think of this?