I wouldn't really say that she is "healthy"
she dominates with little knowledge but at higher elos, she becomes potentially the most counter-able champion in the game, with her terrible stats and her falloff when she gets behind
She is literally a training wheels champion who is swapped out for someone better when you learn to support better, no champion in the game should be deemed the "tutorial champion" so they never see play outside of low ranking games
Specially when that champion is 30+ games out of reach for new players