Is it me or is Nami just the most versatile support ever?

I never find myself thinking Nami would be a bad pick here, she just has everything, heals, CC, Knock up, damage mod, speed mod and very good damage output for a support. to me she is just a great champ. She can adapt very well to any comp it's unreal, so why is she not played so much in the higher elo? what am I missing?
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