This is just horrible, plain and simple. I pray a proper investigation gets to the bottom and the root cause, be it systemic or human is identified.
Like it or not the Bone is a CAS aircraft, having filled this role extensively during the GWOT. This tragedy is just that and isn't a judgement on the aircraft in that role.
If fratricide is the determinant of effectiveness in role, then the A-10 shouldn't be flying CAS either.
Take the opportunity if possible to attend a combined arm exercise and watch the Bone at work and you'll like what you see. It's not a CAS platform in the same way the A-10 conducts its business, but it has its place.
The early reports I've read is that this was a mis ID and not an improperly delivered munition.