IT has disabled the feature for us, and quick googling didn't turn up any screen shots, so I can't see the prompt myself, but given how it is described it doesn't seem adequate to me. When software asks permission it needs to say what it is asking permission for. Something like: "This feature will send your slide contents to Microsoft's cloud servers to search for relevant design ideas. See our Privacy Policy for more information on how we protect your data". It doesn't need red flashing lights, but the user shouldn't have to dig around to determine what/why the program is asking confirmation.
Okay, I found a screenshot of the request[1], and I don't think it is clearly communicating to the user what they are agreeing to. On the good side, they do clearly describe which information is involved (search terms and document content), but on the bad side it isn't clear about what is being done with that information. In particular, for over 20 years Microsoft had used "Office" to mean a piece of software running on your own computer, so saying that "Office" needs to "collect" information doesn't clearly convey the idea that your documents being sent over the internet.