According to @BoutiQueenSg, that's at Newton and has been "like that since forever".
I reckon you either learn Parkour to get to your bus or you miss many buses there all the time.
I am told that the bus actually stops near Esso petrol kiosk and since there is no space there, the shelter is at its current location. I suppose you wait there only if it rains.
(via Yahoo Singapore Newsroom)