If they bring back solo carry-able games then they will have to bring up bounty costs for players that go on a spree. Carrying isn't an excuse for playing recklessly. And shutting down the star play on the enemy team oughta net a good sum of gold. Because if the intent is so players who can "carry" by themselves, then chances are they're 1) harder to kill/put down 2) fed off their ass and ahead in gold and levels. There needs to be a way to recover the gold difference between the team who's behind and the team who's far beyond ahead thanks to one player.
I'm not saying solo carrying is bad, I'm just saying that it needs to come with some kind of change alongside it. No one wants to play against a hypercarry Nasus, Yi, Yasuo, or whoever and not be able to come back. It'll still just be the one-sided stomp that we've all been complaining about, just with 1 person on the enemy team carrying, and not 'because our bot lane is shit'.