Guess Airbus is seeing the demand for such things. Our outfit, just cargo widebodies, is very busy with this Covid driven demand.
I remember years ago when we had a cargo(side) door inop on outstation they brought all the cargo in through the main, pax door(whatever fit) and build up the pallets inside the ac.
We had to extend our duty time but they did an amazing job building those pallets inside the ac.
That was on my fav ac, MD11, treat her like a woman...