It's audience-centric design at work. ACD is one of the most effective theories of marketing currently around, but it is used is a pernicious way by much of the entertainment industry. Instead of focusing on the specific audiences they do have, most executives try to use ACD principles on what are seen, without much reason, as the most desirable audiences, predominantly young white men who are "bros". Also, execs tend to over-read the data rigidly.
I'm sure those execs were busy complaining to one another that they had no idea who played D&D, and therefore they didn't constitute an audience (or, alternately, that D&D players were too small an audience to be targeted).