Seems like that argument has moved the goalposts from "most people" to "most people who use the language", and it's still not clear why that's an interesting barometer.
Even acknowledging that this is a thought experiment, what does the ability of J. Random Perl Hacker to grok a piece of random code from a domain and context with which he or she may not be familiar indicate? Surely a one-bit "is this readable" test has lost so much signal from the interesting criteria that it means very little!