[Very OT] Tweets I Don’t Understand

Following news that Baltimore’s mayor resigned after using her influence to force various agencies to spend hundreds of thousands of copies of a children’s books she wrote, Baltimore-based television writer/director/producer David Simon tweeted

To everyone coming @ me and demanding a season six of The Wire about Catherine Pugh, her ridiculous kiddie-books-as-shakedown and the rank complicity of Baltimore medical systems and charities and such in this citywide grift, let’s be clear: Full stop. No. I don’t do half-hour.

Does he mean he considers this to be a sitcom plot?