The Spirit of Nietzsche is alive and well...

1) Assuming it is genuine, and not something done under his mother's influence/prompting - that kid is both impressive and a little scary.

2) Honestly, I really hate women like this. I've seen more and more of these stories where women, both professional journalists and not, use their children as a focus to draw attention to themselves on social media. She is maybe not quite as bad as Jody Allard, the woman who wrote a WaPo article about how her nice sons might grow up to be rapists and then was dismayed that they didn't take being called potential rapists by their mother in the WaPo very well. But your children should not be pimped out for your attention-whoring.

I'm thinking if the kid were truly that bright and insightful his spelling might be a tad better.

Intelligence and spelling do not necessarily go together.

Indeed even good writing and spelling don't necessarily go together.  I understand F. Scott Fitzgerald, for example, was a notoriously poor speller.