Yeah, I haven't played player vs player, like I said, so I can't speak to this stuff. from what I have read, a lot of people seem to be noticing the game "assisting" the team that is down in order to keep the games close, regardless of how the actual users are playing. I can't verify it in 2k13, but i saw hints of this in 2k12 when I went online. it seemed like 2k really didn't want people to get blown out and get their feelings hurt, so if you started to run up the score on the other person, they would suddenly start making all of their shots but without changing their strategy or playing better...it was like the game just wanted to help them out. i can't confirm for sure this is going on, but if so, it goes against everything that is right in the realm of competitive video games. it should all be about skill...if user A is making great decisions and getting open looks, and user B is just trying to ram it into the paint or jack up 3's, then user A should be able to blow out user B by 30 points.
quality play should be able to dominate poor play. i think this "assisting the loser phenomenon" reflects the overall cultural attitude of "there are no losers, and no one should have their feelings hurt"...blah blah blah. it's a competitive game...if you're not good at it, you need to practice more or move on to something else. the game should't coddle you and give your team a boost just to give you a false sense of confidence. real life doesn't coddle you, so these people might as well learn to deal with that.
I also think it has to do with what teams are being used. it seems like the "super teams" can win no matter how many terrible shots they take, just because they're the Heat or the Thunder. it seems like a forced attempt to make the great teams seem so much better, even if the so called "great" team is being controlled by a terrible user who is taking bad shots.
I get it from a business standpoint, though...i mean in the end 2k's real goal is to have a many people playing their game for as long as possible. i'm sure they have whole departments of people who analyzed numbers like how many losses a casual gamer can endure before they give up on a game...if too many casuals are getting blown out and feel the game is too hard, they will give up on the game and move on to something else...so from a business perspective, I understand why 2k might employ this "comeback assist" to give the casuals just enough hope to keep playing their game.