It helps that the rebels donated copies of all their equipment to the dark forces.
We have evidence that any hardware maker that would open up their hardware will do it already (see: reMarkable, Ubiquiti offering SSH root access). If you try to fight that battle by holding software from them, you only lose them as a contributor as they make their own, which is worse for everyone.
What’s something that was released as MIT but, had it been GPL2, would have seeded a community?