They represent the triumph of disability-access over safety*. These sorts of stops were suggested as being rolled out all over Melbourne's extensive tram network. The kerb is brought out to the centre-lane tram track in a raised platform to allow wheelchair access. This removes one vehicle lane and cyclists are cut off, hence the path is routed around the back. Of course this creates conflicts with pedestrians, and in at least one case drops the path across a street exit.
Happily no more of these have been built in the suburbs, although similar 'Super-stops' have been built in the CBD.
* The first stage of disabilty-access beating out cyclist access was the removal of platform access ramps at our major station during its reconstruction. Replaced with escalators and (inadequate) lifts. Ramps were simple and easy for someone to wheel a bike up/down, but apparently too steep for safe wheelchair access. I'm OK taking the bike down the escalators (even fully-loaded) but it's not easy for many - a barrier to PT access with a bike.
The second stage has been the widespread roll-out of tactile paving surfaces. These evil things may help the visually impaired, however they are lethal for bike tyres in the wet, and they're all over the place at bike-path road crossings.