I take her point, but it’s naive to say things like, “That’s not something an Ivy Leaguer would say.” I’ve known many people from Ivy League and other prestigious universities, and they don’t all write well. There are still malapropisms and overly verbose sentence constructions, and some people fall into a habit of trying to sound clever or cultured out of insecurity (a common problem in a highly competitive and judgmental institution). For a while I used to edit people’s theses and journal papers and I’d constantly be rewording things to sound less clunky or just to fix basic grammar or word choice. Most of this “manifesto” is pretty plainly written, and the couple of clunky bits don’t really prove anything. I’ve seen worse from highly educated people.
It’s both.