I hope we hear how all of this turns out. That would be very interesting. For someone so small it is surprising to see that swing. Also, most 11 year olds would not be able to throw strikes from a regular mound and 60.5 feet. Anyhow, it's not the kids fault that he is playing.
That said, it seems sort of crazy at 11 years old and at his size. Though my oldest son started on a very good Legion team (best players from several high school varsity teams) when he was 13. That didn't bother me and he did well.
I forget his name right now, but there was a pitcher who first pitched in the Big Leagues at age 15.