So, a practical application,
I was on a Quail hunt and the guy mentioned someone hunting there recently with a 410 pistol.
I can see a Diablo doing the same thing with shot but one would have to get good at loading while standing up without a table.
Just because someone tries something, doesn't mean it's a good idea. IMHO, there is too much chance of wounding the bird with that contraption. Nothing makes you feel worse than wounding and animal and not being able to find it.