This entire series was messed up. Every season disjointed from the other and all of them having various major flaws. But sure, S3 was “OK” although I feel pretty much over that enemy… I’m not sure how they still don’t suspect it’s starting to feel stale. Also, fan service was over the top with unbelievable scenarios conveniently bringing everyone instantly together.
I assumed the intent is not to actually be Polish or Celtic etc. but give areas influence. I’m still not sure I like it though.
I would rather have seen it done more like Middle-Earth where names can be different depending on language, but the common “English” tongue is normally used. So you have a river called Brandywine and another place Rivendell for locations in regions for two different races. Both just being English-sounding words unless asking their native races.
It kind of takes me out of it when suddenly stepping into Druid country and I start thinking of Scots and single malt whisky. I mean there’s no lore reason behind this at all because this is not even planet Earth. It just… is. :-/