sigh So, in GameDev, art assets are as important to the final game as code. And is, just as important to be version controlled as code.
And sure, you can split it up between many different repositories, and call it modular But you're just adding complexity, and not really solving the core problem which is that a single version of an art assets can possibly be > 1G, and be a poor format to be stored delta-encoded, so each revision can possibly be nearly a full duplicate. (Yes, we can talk about the file formats being a poor fit for VCS, which is true, but GameDevs are just trying to make their product) And again, it's really important for game assets to be version controlled. And maybe Git isn't the best place for the assets to exist in version control, but we are in a thread about Diversion and not Git.
Now, don't get me wrong, I'm uncertain that Diversion will exist in a year when you check-back, But I can guarantee you that Perforce will, and if Unity doesn't continue it's trajectory of destroying everything it touches, Plastic should continue to exist also.
I don't even completely disagree, Diversion, P4, and Plastic appear to be a bad fit for code in comparison to git, and even in our studio we've taken a modular approach (gasp) and store our code in git, while using a better suited VCS for assets. But it doesn't change the fact that you are being very dismissive for something that you very clearly know nothing about, and clearly have far too much ego to even be interested in a legitimate dialog about.