I tend to agree that Julia and other modern programming languages with hygenic macros aren't "homoiconic". Maybe GP is making a point about the title of this presentation? Read generously, maybe he's criticizing calling this homoiconicity by comparing it to Julia which originally claimed to be homoiconic but removed the claim from its website because of contentiousness[1]?
He could be making that comparison, but I read the comment as "I use Julia btw", and that's what I took issue with. I wrote a comment to dismiss it and save face for Julia programmers.
