Your point would carry more weight if it were impossible to disable it and if I had suggested the parent post just use it anyway.
Hell, look at how many people type in website addresses into their search box.
Perhaps it was re-added? Or I'm looking in the wrong spot?
Fro memory: press the Meta/Windows key; write "privacy" on the dash; a window with privacy options appears; hit the Search tab, disable the checkbox.
It annoys me that it's there by default and non-technical users will not know how to do anything. There should be an option or warning on the dash itself.
If it's the type of thing no one would ever enable, unless it were defaulted as such, then it shouldn't even be there in the first place.
If someone paid money to put it there, then the person who agreed to do so isn't acting in the best interests of those they serve.