No offense, but I feel like that shouldn't be your decision to make. Some people only want to play with real people, and prefer filling extra spots with strangers. I'd rather take the gamble on a stranger in Left 4 Dead than keep the bot.
Taking away choices from the player isn't always best. You don't know what's most important to everyone, and that's (and I truly mean no offense) how a decision like no split screen happens to begin with, by taking away options because you have an idea of how everyone should experience the game instead of building it to be experienced however the player chooses.
We're not "taking it away" - we made a decision early in dev to focus on other features, following long conversations about the pros and cons of MM co-op. In the end it was decided that effort and time were better spent on other features you will use more.
It would be a nice to have but ultimately it's a resource balancing issue and there are more important features.
Although the next three pages are going to be about how vital it is.
Our AI players behave like "real" players, and are likely to be cleverer and more helpful than a lot of random "real" players. I think it will make more sense when you see how the AI works in practice.
Not dismissing the feature at all, just explaining the reasoning. We're not removing the option, it was never implemented to begin with.