And for some it can be seen as boring and pointless asking people to pay for depressing and divisive issues that they read comics to escape from when they can get them for free by walking outside or turning on the news. The only thing you end up doing is splitting the audience in half. When I say half I'm being generous. That is why cloaking it in metaphors are important. Some fans see it for what it is, but don't mind being finessed as long as the book doesn't get too in your face. Others never pick up on it. Others get it but want more, but still sick around.
That is the beauty of metaphor, it allows you to hold on to fans who otherwise would leave if you went whole hog on being straight forward.