Sure, in the case of this specific tool. But the point of something being demonstrably 'private' is diminished based on your usage of the word in other contexts

Sure, in the case of this specific tool. But the point of something being demonstrably 'private' is diminished based on your usage of the word in other contexts. And again, hitting Microsoft IPs. Microsoft have assets on many websites, so the correlation is trivial over time, no specific IP needed, no cookies needed.