Sure, I'm not saying that it doesn't make sense or that I don't understand it, it's all just very abrupt. I mean, what you're saying is true, but it's also the case that most of it happens (or is implied rather) in one or two scenes that are maybe two minutes a piece.
And then on top of it, the game doesn't really explore the type of conflict and comeradery that comes with being in a gang. It's all there in the mechanics and the gameplay scenarios, but it would've been nice to have some scenes with Jacob and Evie bonding with the men and women working for them and fit the rival gang leaders to have a little more character put into them. I've fought three and they don't even have unique character models.
It's not a deal breaker and it's not even really something I'm holding over the games head, but I notice it. It's a little stark in comparison to Black Flag, which I felt did a good job portraying Kenway as a pirate, and his relationships with his associates, his rivals, and most importantly his crew.