Probably because he didn’t manage to visit.

The guy has probably not been there. There are tons of others not included but it's fine, just a guy.

It says "European", not "Asian".

West of the Urals is Europe. Istanbul is included, and that’s even more questionably European than Moscow, I think.

It's also not an exhaustive list anyway. At least Helsinki, Finland is missing. I think Finland is unambigiously Europe.

Did you skip geography?