Your historical pile of millions of MSOffice documents is an ocean sized moat.
https://news.ycombinator.com/item?id=37408776
Maybe it’s a good idea to spread your data and not putting it in one place, if you really need to use the cloud
As such Microsoft is doing the right choice in outright stealing data for whatever purpose. It will have no real consequences.
Surely people would agree C is widely used, it is a "defacto standard" in many areas, yet... And that is a programming language, businesses are a whole different story.
(FWIW I am not trying to speak against C at all.)
With AI-CEOs - https://ai-ceo.org - This would never have happened because their CEOs have a kill switch and mobile app for the board for full observability
Not to mention that they abolished QA and outsourced it to the customer.
MS failed their customers more than once.