I am well aware that aside from the Anglosphere countries use engrish in Polandball; I am not criticising it for such. I'm criticising it for overuse of it. There is a clear distinction.

Polandball needs to carefully straddle a line on this - enough references to national stereotypes and engrish to be amusing, but not so much as to cross said line and 1; kill the joke 2; be racist. In my opinion, this one didn't get that judgement right.

The nature of criticism is that it is critical.