A reasonable response. However:
The feature wasn't removed, the "button" was just moved. Your response to that was simply "I don't like change", while there were important reasons to move it. Bas had this right, Fitz Law applies here. Moving it to the corner makes it easier to find the button with a mouse. If this feature is important, then applying Fitz Law to it is a productivity and usability improvement, and not "change for the sake of change".
Yes, this is likely to annoy some users (some of us adapt well enough to changes like this, that if there's ANY reason for the change, even if it's cosmetic in nature, it doesn't bother us). Those folks, however, fit in the camp I was talking about, in this case. There's a reason for the change. If it annoys you, that's possibly understandable, but not something Microsoft should care about.