Perception, Political/Ideological Expediency, Russian Eurasianism
There are many reasons why certain creeds or phenomena from foreign countries remain unknown in the West. They could be almost totally ignored for decades before becoming interesting to the scholarly community and general public until, eventually, works about them become published by the leading presses.
"The Twisted Mirror of Perception: Social Science in Service of Political/Ideological Expediency -- The Case of Russian Eurasianism,"
Comparative Civilizations Review: Vol. 81
, Article 4.
Available at: https://scholarsarchive.byu.edu/ccr/vol81/iss2/4