while this group poses little to zero threat to the united states, and it consequently makes little to zero sense to expend imperial resources fighting it, it's certainly a threat to the people that live in the region. it's just about the most textbook example of a terrorist group that you could find.
so, the message the administration is sending is "we don't care what happens in the region", and that is neither helpful for those that stand in solidarity with secularists on the ground, nor is it enlightened policy, in the long run.
i would support a cessation of material support for the genocidal behaviour of the saudi state, both in yemen and in syria - as well as in libya. but, this group belongs on the terrorist list, and removing it from that list is just flat out daft.