This sounds cynical on its face but it is my experience as well. Management does not actually trust engineers to provide value without close oversight (sometimes with good reason!), so any framework that purports to give engineers more autonomy will eventually be subverted by the management. And since management always has more power than line engineering, they always win.

The only way for "true" agile to really take root would be for management to trust engineering to add more value on their own than when being micromanaged. That's a tall order, and gets much taller in larger organizations.