Why the Shaco / LeBlanc clone changes?

Maybe I'm missing something. I already thought those two were cancer champs to play against. It was just a bit nice being able to slap down a pink ward for Shaco invis or look for the clone who had the buff on them so you know which one to attack. What was the purpose of changing it to where both clone and champ have the buff on them now? Seems small but it did help catch them throughout the match. It was already painful dealing with Shaco / Leblancs, now to add that makes it a bit more painful. If you also have any tips to add in dealing with either champ in this meta, I'm open ears to that as well. Thanks.