Remember the movie line, "I see dead people everywhere." Just change it to "I see ignorant people everywhere."
I knew corn was maize in the US in elementary school and was something else in Europe.
I lived in a dorm in the '70 where there was not dinner served on Sunday evenings, not only was pizza delivered, but Tacos, McDonalds, and any other fast food that relied on a college campus that the majority of students did not have access to cars. It wasn't like today where kids can drive their cars, have refrigs and microwaves in their rooms along with computers, TV, etc.
As for reviewers of plays, music, etc. they seldom know a thing about what they are reviewing. Anyone reviewing a play, should have a copy of the play. I went to a concert of a pianist once and the reviewer tore him apart because he had the audacity to wear an African Print shirt and did not stay for the entire concert. He did not see the number of young people lined up to get the pianist CD and autograph. I might add I tore the reviewer apart in a letter to the editor along with several other people.
Have your pity party, but remember there are Ignorant people writing reviews everywhere. Most of them are found out eventually.