[memkit]

I was similarly confused and finally decided that the commenter could have also been referring to the unsubstantiated fact that Americans drink more black/drip/pour over than Europeans, who mostly drink espresso-derived variants.

I say "unsubstantiated" because a cursory web search didn't turn anything up. Anecdotally, it seems true.

[dagw]

mostly drink espresso-derived variants.

I'd say in general there is a very clear north/south divide in Europe when it comes to coffee. Northern Europe drinks more filter coffee and souther Europe drinks mostly espresso. Of course over the past couple of decades a lot of 'foreign' influences has greatly changed how Northern Europeans drink coffee (much like in the US)