The "old" Upgrade Adviser was nice... the new one (I can't remember it's name because they changed it and won't be using it again) isn't because you're going to share information with MS that you won't have an option as to whether to allow the info to be sent to MS or not. The only way to not send the info to MS is to not use the tool.
From the article:
Of course, making new versions of SQL Server is not about taking away features, but adding new functionality.
Oooooo, don't get me started on that long history of train wrecks and only partially complete "new functionality". ;).