From the article, "its productivity software is used by hundreds of millions of corporate users, a captive audience to whom it can easily promote new AI products."
Their end users are what they ultimately sell. They are captive audiences. This is what monopolies/platforms do. It's never been part of MSFT's DNA to care that much about end user experience. Who they really cater to are the IT decision makers, etc. These people can then show some numbers about "AI adoption" and "productivity" gains on their Power Point slides presented to their bosses. MSFT's value is delivering that to them.
weirdly enough, we asked microsoft to help us build these reports and give us insights into these numbers. The ones in our country were utterly incapable and just send screenshots of powerbi reports from the US team.
So yeah, it really is completely broken internally. monopoly abuse to the fullest, we weren't even allowed by our CTO to do an RFP with potential copilot competitors, and the license cost for 5000 users is insane