The key difference btw Google and Microsoft is this:

If MS harmed you, you'd know. If Google intends to harm you, it looks like a stroke of bad luck.

All they have to do is hide the tree (you the person they intend to harm) within the forest (thousands of other sites/businesses) affected by the same policy change.

You could go months without finding out. And if you ever do, it's extremely difficult to prove foul play.