Ranked Game Promos

Sometimes when you are in your promo series, you meet people who don't take the game seriously. They think it is just one ranked game so it's okay to surrender or throw. Many people don't think about how this one ranked game may be someone else's promo game to get into gold or plat, and that is an issue. They throw the game and you therefore fail to complete your promotion series. This has happened to me before and I find it a bit annoying, especially when someone types "I'm gonna troll this game cause I'm bored." or "Dallas Airport Wifi tho xD" Now to fix this minor issue, I suggest that Riot would put all the people who are in their promo series in one game, therefore everyone would actually try and you wouldn't get any trolls in your games. I don't know if this is a good idea cause it might be too much work (IDK though) but I hope it is put into action. I feel like this would help many people to get into higher ELOs faster without all the frustration of a troll in your promos.