The same thing could probably be said about European posters and e.g. Canadian hockey prior to 1945.
I never saw a European poster, who stated anything about NA hockey prior to 1945, considering himself as an expert.
Look no further than resent topic about CSKA in the NHL. It's obvious, that NA posters know nothing about Soviet league (they don't even distinguish 60s, 70s and 80s - and it were completely different CSKA teams there), but almost no one bother to ask a thing about CSKA or league or anything - to learn is hard - have an opinion instead!
But IMO it wouldn't be fair to say they "don't want to know". In both cases (NAs and European hockey; Europeans and older NA hockey) many posters are willing to learn when one brings up information that is new to them.
I didn't say, that they all are the same. But the majority are.
It's just that the language(s) barrier makes it a bit more difficult in case of Europe. In North America, everything is in English (and a bit is in French). In Europe, you have to deal with four different languages for original sources from the four major players Russia, Finland, Sweden and Czechia (plus Slovakia) and then you can add some sources in French and German and a few other languages. Even for Europeans, it's not exactly easy to get a good read on historic players from other European countries, particular those numerous quality players who weren't the biggest international stars in their day and didn't get much foreign coverage.
1. I-net has a lot of videos. You don't need to know language to see. And it's the better way to study hockey.
2. There are some sites with stats. Even if you don't know language, you may understand numbers. If not - google translator may help
3. They same correct for some short articles. You may understand the main idea even with google translator.
But it takes time and efforts.