Re: Precedent has been set...
Microsoft actively tries to get your to use bing. If you don't do anything you get bing.
Most people actively choose Google if they use IE (there are 141 search providers listed in my copy of IE 11), or they download Chrome or Firefox.
With the Microsoft Windows / IE thing they forced Microsoft to offer an easy choice so people could use Firefox if they didn't want IE. Google is not the same thing at all, people chose to use Google, if you make it easier to pick your search provider even more will pick Google.