[craigsmansion]

It might not be cultural offence the GP is referring to, but imprecise language in an article about language.

"because they’re on some Slavic shit."

Did Romania at some point get invaded by some other Slav people, is it merely Slavic language osmosis between cross-border dialects?

If the casus belli for US entry into WW2 was referred to as "Some shit the Japanese pulled" in a piece about history, wouldn't that give you pause?

It was an opportunity to teach a reader something, but the opportunity was exchanged for a popular short-cut expression. If found that somewhat irksome as well, even though it did not offend my cultural identity.

[elliottkember]

I think it was more “an unrelated track of language that we’ll disregard for the purposes of this article”. Being “on that X shit” uses “shit” neutrally. It’s a flexible noun in this context. You can have “that good shit”, for example.