That's not really the issue - an OBJ file can be stripped, removing all but the lines starting with a v, and that's OK to distribute as far as I am aware (because you can't get the head from the result - it's just a cloud of disconnected points) though providing deltas and an injection pose is preferred 9and works for people who don't have the Morph Loader plugin). The issue is whether the morph is all the vendor's own work (as with GND, which was made by shaping the base mesh directly) or whether it was shaped wholly or in part using the DAZ morphs. If the DAZ morphs were used then the distributed files must need the user to have the same morphs installed in order to work (by supplying a pose which sets them or via an encoded file) which isn't the case if the character is supplied as an obj or as an injection pose loading a single compound morph.