>Pro-JEPD camps point towards style analysis, dividing the pentateuch into four distinct dictions, each with their own (hypothesized) time frames.

I cant cite specific sources off hand but style analysis and diction is analzyed at length in the talmud and every word choice and sentence structure is examined.

I encourage you to reach out to a talmudic expert...perhapd at ohr sameach or aish hatorah and ask for their take on these positions. They can cite specific talmudic sources better than I can.