Parents claim much credit when they achieve (as they should get some credit). It's only fair to bring it up when things go badly as well.
Eiher way, I don't think such youngsters in question are properly recognized/condemned individually. Soldiers credit their training for what they do, but they alone pay the price or feel victory in the end, not their drill instructors.
Home-schooled an issue, you say? Sounds like he was "well-schooled" to me. But your sample size is 1. Increase your sample -- and sample both home and public schools. Then redraw your conclusion.
~*ping*~
What in the AITCH would that have to do in this instance; with this over-the-top gifted child?
I don't think this kid or his method of schooling fits the traditional home-schooling model.
Besides, when looking at home-schooling vs. public schooling, it is broad trends and statistics that we must look to, as in any inquiry, rather than simply isolated incidents and anectdotal evidence.
There are alway exceptions on both sides.