But... Is this objectively a difficult spelling? And to speakers of what languages? I don't speak any Slovene, but we did learn all capitals of all countries way back in middle school and I don't remember Ljubljana being a particularly difficult one for anyone. The "blj" moment is a bit tricky there, but once you've actually read all letters out, it's not difficult, it's written absolutely phonetically (unlike 95% words in the English language, that are much harder to spell). Moreover, as she did make a mistake in the spelling I would say that it basically rules out anyone from Slovenia or even neighbouring countries, as they would simply see the correct spelling too often.Why was she able to almost spell the very difficult Slovene word "Ljubljana" on a hotel registration if she wasn't familiar with the city?
As for haplogroups, H 24 is found pretty much everywhere in Europe, especially in the west. There are places where it's more common and places where it's more rare, but it does not really mean anything. I myself have a rare haplogroup for my country and my roots are just as local as our neighbours, if not even more so. Haplogroups are very old. But it would line up nicely with Germany and Belgium, but also Romani, Basque, pretty much everywhere.