Hi JW411
I see where you are coming from, but surely if he has just taken off from MAN they can also make an approach and go around.
If they have terrain issues which cause a significant RTOM penalty with a straight climb out they will have an emergency turn which will keep them away from obstacles below 1500'AAl (this probably wouldn't be the case off 23 but we have one off 05). They might not be able to fly the published missed approach but you can always tell ATC your intentions if you go around.
I've probably got the wrong end of the stick.