Scaffolding is the practice of handling the hard bits of an assignment for a student so that they can complete an authentic task by doing the somewhat easier bits. Interestingly, you see this process in reverse as people reach elite levels of performance, in a method called Deliberate Practice.
It’s difficult to say if this pattern undermines the claims of scaffolding. It could.
On the other hand, this could just be part of a natural progression:
|Emerging Competence||Authentic Task|
More on Deliberate Practice.
Another theory is the impact of Deliberate Practice is due to differentiated approaches that help to form novel connections. Marking More Effective Than Full Practice might support this.