Aparently, the author is not homeschooled?
No, I was thrown out of several very good prep schools for my inability to spell, my political views, and my inability to learn any other language, except English, and spell any better than the Bard.
Actually, the author relied on a MicroSoft spell check that was set to ignore words in all-caps. When I do technical writing, I often see the same kind of errors jump in.