Yash, with all due respect, this blog could have come out months ago to prepare the world for this.
This is an obvious "oops, we messed up the comms! Quick! Explain why it's a perfectly ok thing to have!" article.
If you disagree with that opinion, then take a look at the Git commit history on the Docs page and convince me otherwise:
https://github.com/MicrosoftDocs/azure-docs/commits/main/articles/azure-arc/servers/onboard-windows-server.md
Updates to that page were being done the day-of and after the KB went live. Edits that explain what it is, what it isn't, and how to uninstall. While I agree it's "benign", the fact it wasn't communicated in a normal, sane way is disrespectful to people who leverage Windows Server everywhere, especially at scale. Do you have any clue how many Citrix or VDI users were greeted to this thing when they logged in? Was that even a use-case on your radars?
Now, I do agree that an MSI installer is a much better user experience than the "traditional" way of doing things. But to shove it down people's throats like a billboard on a highway? C'mon, don't insult us.
-Ernie Costa
Microsoft Azure MVP