Is Corki bugged or something?

Just like how Yasuo achieved a high winrate of 56% when they fixed his 'bug' and then refixed it, Corki's winrate seemed to skyrocket in the midlane...Anyone have any insight to this? I also just got rekt by a Corki in a norm @ bot lane. Whether that's because he was a smurf, I was distracted, I wasn't playing my best, or he's bugged, is why I wonder.
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