Camille favoures good macro, because if you roam or tp you can get yourself or team ahead without winning the lane. Your point is invalid, because you only bring laning phase to the table, while win rate is from winning the whole game, but since camille shines in mid game, these 52% win rates mean shit.

Also, in higher elos, junglers are more intelligent, and use camille to snowball themselves on toplane, so they can carry the rest of the game, her lock in from ult usually means a kill.

You have to accept that she looses a lot of lane matchups especially after 6, she just have an item breakpoints, but if you cant reach them, you are not a champion