Game still ruined by leavers

Came back to try out the new ranked after not playing for some time and of course the new dynamic queue thing is not even working. So I play a game anyways in ranked. First placement match we were winning the match and victory was pretty much assured. And then it happened. Zed just goes and sits in the fountain. Never to return. So of course we lost. First goddamn game and theres a leaver in it. This game isn't worth the time if every match is just going to have an AFKer in it. Clearly my team were better players but we couldn't overcome a 4v5.