I think Microsoft feels that its OS is so integrated into people's systems that they'll just stop noticing. In some ways, they may be right.
As a regular Windows 10 user, I wouldn't have even thought of it. I only went for third-party privacy enablers/stuff cutters because they were often mentioned online.
It's not that I don't care about privacy: it's that I can't be bothered about it. It doesn't stare me in the face. I think a lot of people who use Windows on their PCs follow the same line.