I'm playing as Mali and I've had colonies on my doorstep for over 200 years that are still at 50% autonomy, yet there's an event that spontaneously produces a nation out of multiple uncolonised provinces which you can conquer and lower to 0% autonomy, this is just illogical to have colonies literally next door to your capital and surrounded by dozens of other home provinces only for it to be a permanent backwater. I'm just going to mod my game to remove it for now.