From a business point of view, these suggestions make sense. However, WBAI considers itself a community radio station. Such stations typically have volunteers come in and do a show or two a week, offering a lot of diversity.
And it's that "show or two a week" that makes the station totally unlistenable by today's audiences.
People who want one show a week on a topic listen to podcasts. The station needs to achieve variety via a magazine format with lots of interesting guests and perspectives within a longer-form style that is inclusive rather than exclusive.