>To do so, users must actively opt out by finding and disabling the feature in settings

Odd. So, lets say I wrote a article and it is copyrighted and on some newspaper WEB Page. If I understand this completely, in theory, I need to find everyone who uses this version of Word and tell them to disable this feature ?

If so, looks to me the lawyers are going to have a great time with this and will clog the courts for centuries.