Likely not intended to be in the release. It's happened a few times before, and is basically a side effect of having the configs in one large folder (it's trivial for them to be included in packs without the mods because they'll simply be ignored, and are much smaller than everything else).
What it probably means is that you can throw AM into one of the packs and not have to worry about configs and clashes, but the mod isn't going to be added officially.