Obama's indecision and political inclinations reinforced the status quo inside Syria -- terror, bloodshed and the prospect of endless war. If you're Assad and you are willing to employ any means to cling to power, Obama has effectively demonstrated that you can carry on while ignoring the rhetorical threats of outside intervention.
The real concern is not, however, the Chemical Weapons Convention, a treaty that most Americans like. Rather, the Supreme Court is likely to use the Bond case to pronounce limits on Congress' ability to implement international treaties. The ruling is likely to defend states rights from federal treaty-making encroachment, while limiting the reach of international law in the United States.