Good. Disallowing software to position its own windows has been a major usability improvement over the X11 days of software making stupid positioning decisions and having to patch it out everywhere...
Yeah, assuming all users and all software should work the same idea is a great way to get people moving to a new platform.
Maybe, just maybe, some people know what they want, and if they want applications that can put themselves in specific corners, why shouldn't the desktop let the applications do that, if the user is OK with it?
