Surely they would only be expected to be punished if they were actually guilty of espionage, which they clearly are not. Of course one should respect local laws and customs when in another country, the issue here is whether they collected information to pass on to someone else, presumably the Turks. It must be obvious they were not collecting numbers for this purpose, and the stuff they had must have been in the public domain for years.
I'm all in favour of punishing people that flout laws in foreign countries because they would legal at home, but that does not appear to be the case here.