That's not good enough. Defaults are extremely important in software, because that's the experience novice users will be stuck with permanently.

It's not even implemented in an intuitive or user-friendly way. When you search your computer, you don't expect Amazon search results to randomly appear.

Compare the Ubuntu dash search to Spotlight on OSX, it looks very amateurish. Instead of improving it, their developers have to waste their time fudging Amazon search results in.