[alykhalid]

You don't have to move to click the little start menu preview, you don't even have to wait for the preview to show up, you just bring your mouse to the corner and click. There's no aiming, just "throw mouse to corner and click". as commented by sukuriant

[Jare]

I guess mousing over to the corner is not so easy when you're in a non-fullscreen remote desktop: the mouse doesn't stop at the corner.