I suspect you're arguing semantics, yes Southern Cross has two hoses, but shared between 4 roads. Only 1 road is permitted for VLocity fuels, the remaining 3 being for Sprinters. A 3 car VLocity after being placed has to be moved two more times to fuel the whole unit.
I believe in theory there is only two or so rostered VLocity fuels at Southern Cross, however the 'emergency' fueling, and I use that term loosely as it's really Cars Office incompetence that causes it, often leaves 20+ fuels a day at Southern Cross, particularly on weekends.
The time allowance for a fuel whilst not officially listed in any industrial agreement is generally accepted to be 60 minutes. One can see how the VLocity fueling is often nearly continuous through the day at Southern Cross, where as at regional locations where the fuel points are purpose built and courtesy of 3 hoses able to fuel a VLocity in a single stop. However regional fuel points aren't used during the day and often not at all on a weekend.
It's just another measure of how VLine despite being provided with the resources required, are totally incapable of using them to deliver a service.