I think it's absurd.

The only hint as to "why" he favored such a load is that "the recoil is scarcely noticeable."

I know a lot of 90lb people who would say the recoil from 200 rounds of 1 ounce loads in a day is scarcely noticeable.

IMO, people who put such emphasis on "hitting" rather than "killing" that they employ pray-n-spray in pursuit of live game are at best misguided. I can think of much worse things to call them.