what names in morowind can't you pronounciate?
The names of some Dwemer ruins come to mind.
Though with me, it's not so much being unable to pronounce the names as being unable to
remember them, mostly the unnecessarily long names used for some Ashlander related things and Daedric ruins, the only ones I can remember are simple ones like Ald Daedroth or something.
But since this is a fantasy setting, i.e. it takes place in a world completely separate from real life. So having made up names makes perfect sense, on the other hand, having names based on real languages kind of makes no sense if you think about it, after all, no one knows about real life languages in the Elder Scrolls, so why would their names come from them? It kind of seems like an alien in a science-fiction movie having a name like "John" or "Bob", okay... maybe that would make sense if you have a setting where aliens and humans have been interacting for quite some time and some aliens could have taken human names, or maybe the alien wanted to fit in to human society and used a human name for that reason, or something like that, but you get the idea, I mean aliens that have never had any contact with Earth before just happening to have real life names, it makes no sense.
Still, you do need to give some thought to it when coming up with fantasy names, otherwise, you still get forgetable crap, and if you don't think about what sort of names a culture might use, you also get inconsistent names, and stealing from real life cultures is still an option if you're too lazy to come up with fantasy names that make sense, and if the rest of your fictional culture is a fictional counterpart to a real life one, having them use names based on a real life culture isn't really any more illogical than any other aspect of their culture seeming suspiciously similar to whatever real life civilization they
definately are not. Also, if the languages your names come from are obscure enough, audiences might not recognize the fact that they're stolen from real life, so you get to look original without actually needing to spare the effort of actually trying to be original.