Sorry but that’s a heavy moot point. Heroes definitely get balanced, without a doubt. How effective the balance is, that’s another question.
Which kind of smurfing? Genuine alt accounts or downrankers? They have no problem with genuine alt accounts because they still play by their rules (no gameplay sabotage). Downrankers are the problem but there isn’t a system that deals with them effectively without collateral damage. Just like the leaver problem, each Idea had a flaw that would make break the game. It’s not like blizzard wants downrankers. They simply have no choice right now.
Well, that was the obvious answer full of wholes because, by that logic, no sport should be competitive because all of them became a sport with enough money put into it. What I’m interested is what you think when a game can be competitive.