This argument seems to assume that people who do not know English cannot figure out how to use ASCII character set for identifiers. If so, it is rather incorrect. Is there something else here, maybe?
Yeah that's the podcast, but I glance at those notes and they are kind of lacking in my opinion when compared to actually listening to the podcast. I'd recommend listening to it as it's fascinating to listen it. Enjoy the listen :)
One of the business for interviewers our company has is to leave a good impression even on a weak candidate. This makes for an overall better experience and, should the candidate become a better fit in the future, we do not want to lose them.