Yup. Its great to know straight away when an opponent has moved, especially if its a game that you're really into at the time, ie: maybe you're in the middle of some plan which is taking shape.
The Move Reminder to me is akin to an opponent saying 'Come on already, Move' in an untimed OTB game. Some games have to be studied extensively, and for me, I need to be in the right mood to develop plans in games that I'm not too sure what my or my opponents objectives are.
That's why I usually move a bit slower in games that I'm loosing than in games that I'm winning. It has nothing to do with preserving rating points.