This probably goes without saying, but so-called "insiders" expect advertisers to "steer clear" of the #MeToo movement in Super Bowl ads. In fact, they may also be avoiding accusations that they're not portraying women in quite the right light this year by taking the easier route of just casting MEN.
Obviously, anything remotely political is pretty divisive these days. Audi and Anheuser-Busch lightly touched on issues like immigration and equal pay last year, and they got a lot of backlash for it.