Earlier quoted context omitted.
How is a Canonical rep contacting him purely a "Microsoft feature"?
Well, what should we be more angry about? That Canonicals sales rep is using data in their CMS, or that Microsoft is selling data to third parties. The root cause seems to be Microsoft, not Canonical and (at least in my eye) the conclusion is not "don't trust Ubuntu", but "don't trust Azure".
It’s like if you tell a friend that there's a key to your back door under the mat but to keep it a secret and instead of keeping the secret they tell a mutual friend about it and that mutual friend robs you since they know where the key is.
You shouldn’t trust the friend that told the your mutual friend where the key was and you shouldn’t trust the mutual friend who robbed you.
The friend who told your mutual friend may have done so for what they thought were useful reasons, like letting the mutual friend know so they could fix something for you while you’re out, but they still violated your trust non matter what their intent was.