Yes, I absolutely recognise that. I've spent enough time in both Sweden and Russia (and Poland, Ukraine, Bulgaria, Romania, etc, etc, etc) to recognise the same stories and military expeditions being told from different angles. It is absolutely true that each nation tells their citizens their own stories.

The point I took issue with was in the excerpt I pulled, which describes the Western perspective as the "conventional" one, which seems a rather Americentric thing to write.

This is literal whataboutism.

It is not, I think, if it's the _exact same relation in reverse.

It is still whataboutism. Do two wrongs make a right? Does an accusation of hypocrisy nullify any original criticism, no matter how true?

No, I get what you mean, but I still think it's a different argument in nature. It's not two wrongs, it's one and the same.

For me typical fallacy would be something like

"You did A. A is bad."

"So what? You did B. B is bad."

This tries to dismiss A , while "Both did A." tells us something about A.