That drastically increases the difficulty in forcing access to a phone. Regional police departments likely don't have a faraday cage and phone disassembly resou

That drastically increases the difficulty in forcing access to a phone. Regional police departments likely don't have a faraday cage and phone disassembly resources on hand, while they may have been sold on grey lock or some other automagic tool. Sure, this might not stop the NSA of FBI, but if it limits the threat vector to 3 letter agencies, it is still a win.