Media is a copy cat industry, so as soon as someone finds a combination that works others will tend to follow along. They have a few different "crazy opinionated" shows with people like Skip and Stephen A. Smith, they have their buddy Sunday pregame shows, they have their we're on radio and TV with guys like Cowherd and Rich, etc etc. Similar to the late night talk shows all basically having a funny host, and a band, and a similar format.
There's no reason why women can't be elevated into more prominent roles within sports analysis, the reason why they aren't likely comes down to a combination of the good ol boys club and the fact that most of the big names have been doing it long before women were really taken seriously in that world, and we're really not that far removed for those days. I don't buy the idea that someone needs to have played the sports in order to understand and break it down, some of the dumbest analysts out there are former players, some even HOF players.