Please do correct me if I’m missing something, but this seems like a lot of uproar over not much... the article states that this only applies to enterprise, who would most certainly have IT admins, and those IT admins are able to block the extension through Group Policy. They’ve also been given one month prior notice about the change. This also only applies accounts which are owned and operated by IT, making it IT’s decision what happens on them, not the actual users.

Disclaimer: I work at msft, nothing related and no knowledge of this besides the article. Opinions are my own.