Excellent mod, but this is one thing that's a bit over the top for my tastes. It causes a massive mid-game power spike where they rapid expand so close to you that it triggers nonstop attacks, overwhelming your defenses by attrition. In the game I'm playing it feels like a sudden apocalyptic event that happens about 11 hours in. Sure, I could blame myself for not getting farther in my military techs, but the difficulty surge caused by this behavior doesn't feel gradual or natural... like 10 hours of normal attack waves and then suddenly BAM unstoppable doomsday swarm with spawners and worms right outside your walls. Admittedly it's kinda cool flavor-wise though.
I'd like to disable this behavior if possible, but don't see a tickbox descriptive of it.