One can only hope that these two online publications might actually start to cover theatre on a regular basis. But perhaps this key paragraph from June Thomas's first entry can shed some light on why theatre is kept out of the cultural coverage:
I did a quick survey of Slate's New York office staff and
found that for the most part, theater just isn't a core ingredient of the cultural diet of this hypereducated, au courant group of relatively affluent young people. They read prolifically, see all the new movies, and can identify the hip bands in four notes, but Broadway, or theater in general?—not so much. Accompanying out-of-town visitors seems to be the main reason for theatergoing. Otherwise, it's too expensive, stuffy, and tragically unhip. Surely that's a problem?
***UPDATE: In the Fray (Comments Section) of the Slate piece, one of the authors has thrown out a question to the readers about Slate's coverage. Calling all interested parties to get in on the conversation.