Yes, now I see. Weird it stayed not fixed, Public suffix list is not implemented in Chrome.
Anyway, the list is not even close to real solution (just had long discussion with @titanius on twitter why not). So many quirks and use cases of <sub>.domain.
Also: take a crack at the CTF we set up. I think (a) you'll do well at it and (b) it'll be fun to watch you. http://microcorruption.com.