Playing against Malzahar feels fair?

playing against malzahar
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I just finished a normal as support Veigar and was ulted to death by Malz at least 5 or 6 times, at the end of the game, which we lost, a box popped up asking if I felt playing against him was fair. I've never had anything like this, is this a new feature? Can I help get Malz nerfed? P.S. I don't really have an issue with malz tbh.
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