Having watched some of their youtube videos, this is exactly it. They hardly train. I get that mileage mania is no longer in vogue, especially with middle distance guys. But they have atrocious strength, and I'd be surprised if any of them run much more than 50 to 70 mpw, if that.
They seem to think they're speedy 800/1500 types, but outside of maybe Windle none of them have that kind of wheels. Anything they do at 3000m to 5000m is either meh or just embarrassing.
The "hard work" I've seen them do on you tube is "tempos" at like 5:40 to 5:20, mile repeats at 4:50 or maybe 4:40's. Just nothing close to high level. I get in these conversations there's always a chicken and egg thing about talent versus impressive training - training isn't as easy as just "do the workouts faster". But given their demonstrated ability and any awareness of what other guys at or just beyond that level are doing, it just does not compute. Look at Julien Wanders' strava. Another world.
Izaic Yorks 1:46.97 / 3:36/ 3:58 / 8:44 / 13:53
Henry Wynne 1:47.00 / 3:35 /3:56 /8:00/ 13:30 . This guy has bonkers levels of natural ability, almost definitely undertrained.
Several of the other guys just simply don't run over 1500m ever or have 14:30+ PRs from years ago.
I just don't get the theory they're operating on. Maybe if you run 1:43, 1:44 you're a fast-twitch type and you can approach the 1500 in this low mileage , lower strength way. But if you run 1:47, you're not actually quick at a global level. You have to be strong. They train like 14:00 runners at best, if that, it makes little sense.