“As you use Office, we collect diagnostic information that helps us find and address issues, improve our products and services”
Then why do we still have bugs 23 years later in Windows?
Why does Microsoft ignore complaints from the users?
Why are updates so large? What do they really contain?
Is the file size to mask uploading your files vs downloading software updates?
Oh, because they regrettably (to them) neglected to spy on you for the last 8 versions of Winders. Or something.