There wasn't any video I know of showing the underside of the bird, so there's no way to tell what damage it incurred over the target, and we probably won't know unless we get the pilots back, presuming they know.
Seems like it was an unanticipated forced landing. If they had known battle damage, they would have headed toward a more secure area or flown back accompanied.
A mystery to me is why they went down with missiles still on board. That makes me think they never made it to the battle. Stuff breaks, but it seems like the pilots thought whatever failed didn't initially threaten their ability to get back. It seems like they lacked enough power to continue, which could be due to any number of reasons from component failures to ground fire.
IMO, the Army knows a lot more than it's saying, and for right now, that's the way it should be.