Whilst Bacardi Walla's post indicates the regulations have tightened up since my days in Ramp Dispatch (nostalgia moment).
Commonsense dictates both main Pax Doors open with Jetty/Steps docked when refueling with Pax on Board
The slight surprise is the crew, cabin, or cockpit didn't pick it up even if Ramp Staff, Line Engineer didn't!
After all safety is no accident