By that I hope you mean Fallout 1.5 and Fallout of Nevada.
Serbs are Turks in denial.
I think the reason why Slav-made games usually get a pass is that "jank" is expected in their games, so much like audiences being willing to ignore bugs in Bethesda games, a certain lack of polish is to be forgiven in games made by East Europeans. In the past there was also the fact so many of them were trying to create spiritual successors to fan favorites like Fallout, Gothic, HoMM etc.,
These attempts usually ended up in failure, but with the Western developers not even bothering to give it a go, Slavjank is all people had.
I think it's more an attempt by Marxists to taint Norse mythology by pozzing it up. Fascination with Norse and Greek myths is nothing new, they're quite likely two of the most well-known and popular pantheons in the world.