my point about the video is this is an American Publication and they have pretty pedantic rules about how to spell! Like naïve and coöperation.

Now forgive me but the pedants of this parish - have they ever faulted these two words?

Tell me who among us regards data as singular or plural? OK,OK, collective noun, but common usage only since computers and not before the 1970s to my knowledge. If you were a pedant that is.

And how long has opera been singular (cf opus). Language is not static, even the French can't control it!