The article states that this battalion has been equipped with the new C-RAM weapons system, Counter- Rocket, Artillery and Mortar, which a little googling confirms. So, they are providing force protection.
I shot right past the C-RAM detail in the article so thanks for pointing that out for us old Redlegs that hang around here. Interesting that the counter-battery mission has moved from FA to ADA but things change and time marches on, I guess. The only thing that gets in the way of this mission is that the enemy usually chooses to launch or fire from a known restricted fire area that’s noted in the US ROE. Thus, the only thing that can be done is early warning for the impact area. That’s only the appearance of force protection, IMNSHO. Real Force Protection occurs when you have rounds in the air responding to the attack before the enemy can leave the area.