I would like to see some science backing this up, because there is most definitely a strong strand of received wisdom in baking circles as I see it. Anyone who’s done a bit of curious investigating with their dough can see that a dough mix changes dramatically in texture and perceived wetness after being left completely alone for ten minutes. That’s as long as it takes for the gluten to hydrate at least, and it does it all by itself.
The simple fact is that I get a well-aerated crumb, clearly with significant gluten strands (similar to the crumb of @anon44377095), that forms in a well-risen loaf, with a basic mix of the ingredients, 30 seconds of Bertinet style stretching and an hour and a half of proving. And I get it every single time. It amuses me when people tell me that that’s impossible.
Personally I think that the heavy kneaders are after a uniform crumb rather than a structured one. And that may be the outcome. It’s not a result I often bother to go for.
But like I say I’d love to see the results of a real scientific study of it. And I’ll admit I’m too lazy to go looking for one.