Comment by elric
That meme is such a load of hogwash. In many ways, US English is closer to "traditional" than UK English. They've both diverged somewhat from what they were in the 17th century. Neither form has been "simplified" in any way.
As for the Union Jack: the UK has at least 3 rather different languages (English, Gaelic, Welsh), possibly a few more depending on how you count the different kinds of Gaelic.
Using a country flag to represent a language has always struck me as being silly. Only rarely do they map 1-to-1.
It's entirely a joke based on the two different versions of "Chinese" offered on most websites, it's not really meant to be taken seriously. But I've heard that there's an island in New England somewhere whose local accent is closest to Elizabethan English.