Trevor Painter shares the secrets of the world's top mid-d training group: "We are definitely not a double threshold group."

there are definitely some 1500-pace type workouts in this video (which is a good video btw)

True, but women's events actually skew more aerobic then men's because they take longer.
(Yes there is a difference in anerobic/aerobic contribution between a 2:00 800 and a 1:45 800 even assuming each time is an athletes max capacity)

Seems like M11 is doing good speed based MD training that suits it's athletes well. I don't think it works exclusively for women, especially considering it is based on Coe's training which worked well for him.

We aleady know from science, athletes range from muscle fiber types from fast twitch to slow twitch. I dont think its the amount of distance thats the issue. Peter Snell ran 80 to 100 miles per week but a lot of that was normal pace running. My thinking is most runners will be better off with that base in their legs going into the last 200 of an 800 race. More likely it is the quality of workouts and structure including rest and recovery and then it includes individual muscle fiber types as part of the equation. For example a fast twitch runner in trails might not respond well to 10 mile tempo meanwhile the slow twitch runner will eat it for breakfast. I hated long tempo runs but break them up into maybe fartlek or a ladder of some kind and it was much more palatable and not much difference in fitness or total distance.