Video doesn't work...says "private".
But if you haven't already figured it out, I'd say there's something wrong if there's significant looseness between the bushing and shaft. The bushing is not a tight fit to the shaft when you slide it over the end of the shaft, but should still fit fairly close to the shaft. Without your video, I don't know if there's too much slack. Of course, if there's too much play between the bushing and the shaft, I think you could get some movement with the bushing and control arm on the shaft, even when tightened down, which could affect alignment, or cause some shaking.