I think there was a sense that the impact was being lost because the audience was so familiar with the form. You combine that with people's attention spans, which are clearly conditioned to be shorter now, and there's a need to vary the paradigm.
“Liberation movements - operating surreptitiously and conspiratorially - thrive on discipline and suspicion, and punish deviation or dissent.”
“As far as I'm concerned, the entire reason for becoming a writer is not having to get up in the morning.”