The author is Leif Wenar, Professor of Philosophy (as well as Humanities, Political Science, and Law) at Stanford.

He’s the author of the book Blood Oil: Tyrants, Violence, and the Rules that Run the World (about which Peter Singer wrote: “Philosophers rarely write big books that could change the world, but Blood Oil is such a book.”)

Wenar studied philosophy at Harvard with John Rawls and Robert Nozick, and was Karl Popper’s research assistant.

I think the author's criticism of EA would be more, uh, effective, if they summarized their main arguments in a few short paragraphs. The article is way too long.