It might just be how it shows up in the photo, but that sway bar looks cantilevered a good way out from the body. I'd be hesitant to run that. I'm much more used to seeing sway bars solidly mounted on both sides rather than just dangling.
It does state in the instructions to weld the bracket at the top if you had to add the upper mounting hole, which I did. But it is also mounted by the LCA mounting bolt. It does stick out oddly, but Progress is pretty well known. Have you had issues with something like this before?