In addition, the marketing material assumed that the people reading it would be drinkers, and gave no consideration to the idea that a non-drinker might actually want to attend.

In addition to sexism, the marketers seem to believe that "teetotalers don't really qualify as people in the same way drinkers do, and no I've never really thought very hard about it".

(They also seem to feel the same way about people who don't like massages, people who don't work out, and people who don't like cupcakes.)