And? I don't see why Bethesda is to blame like you say they are. They announced a feature they were hopeful to get happen, and had every reason to believe it could happen since MS allowed it. It's on Sony.
Bethesda announced mods supported not Sony, did they not? Not saying sony isn't at fault for not allowing it but Bethesda had to go in knowing full well that it was a possibility that it couldn't happen. Both parties are to blame.