Is it April 1? A Joke? Browser hijacking your customers? I've spent the last 25 years battling this kind of malware. Someone at Microsoft who receives an actual paycheck to THINK about direction for the company, thinks this is a good idea? This is exactly the kind of aberrant corporate behavior that pushes customers to look for alternatives, whenever and wherever they can.
I certainly understand there may be advantages to what you suggest regarding searching with Bing across the organization. But that should be an OPT-IN choice. I should not have to suddenly commit resources to prevent your company from taking over whatever software I have installed in my computer.
Stupid is a good place to start to describe this kind of decision on Microsoft's part.
Yours truly, one of the admins who will be wasting his time because of this.