I'm not saying that you are wrong but that fix seems to about suppressing error results and a quick glance at the diff doesn't immediately look like it introduces any filter (unless all images are suppressed from Amazon).
Either it is fixed (and that should be properly indicated) or it should be taken seriously and fixed VERY quickly. The attitude of don't care/won't fix isn't acceptable for a public release by a supposedly professional commercial organisation or really anything beyond hobbyist scale. Canonical/Ubuntu is too big to let this default behaviour out of the door. If they can't fix it instantly they should disable the whole feature (as default) until they can fix it.
Edit: I've checked the diff again and maybe combined with server side changes it may resolve the issue. The point remains that the open issue should be properly closed.
Better yet, make sure you remove Unity altogether. I've been using Quantal since beta 1, and while Cinnamon wasn't so stable for me, Gnome 3.6 works smoothly.
Make sure you disable the shopping lens before searching in public. Amazon searches can be NSFW!
Don't search for analyze in a school or Saudi Arabia.
I think that this is unacceptable default behaviour but currently seems to be a WON'T FIX.