WhiskerPumYeah, I think this is mainly to prevent bots from leaving and then rejoining the same server when a votekick is called on themConsole-Valve
I dont see any harm, it only applies if the vote recipient leaves. So if the vote is against a player and the player leaves it doesnt do anything new since the player left anyways. And if the player doesnt leave until the vote is done then its as it was before
My bad misread, did not see it was only for players who had already dc'd