Can something be done about players dodging in champ select not preventing games from starting

I've just played two consecutive match's where one side or the other had only four players.

The first game (Fizz game) I saw in pregame lobby the "player has left lobby" message over 20 seconds before match start and low and behold on entering game the urgot who chat said left never connected.

Second game the opposing team was 4v5 so can't be 100% sure but grasp on syndra is not a keystone you would often go into a match with.