This was never a thing for Medusa, nor has it been for its renovated state Bizarro. The MCBR was placed there for capacity and safety reasons to regulate speed in an area that would produce heavy laterals otherwise and to allow for a 3rd train to run without stacking on holding brakes in ideal conditions. Below is a picture of it opening year, in which you can see the MCBR catwalks on the far left, and below that is the earliest video I can find of it.