The idea that manipulating a red ball by a Festo robot specializes in grasping an apple is like thinking that a carpenter can go straight to heart surgery just because he knows how to hold a tool.
It's not a simple evolution; it's a change of domain that requires radically different skills.
A ball is uniform and solid, but an apple has irregularities, fragility, and can roll unpredictably, demanding a completely different level of sensorial adaptation.
To hold an apple without crushing it, fine haptic feedback and embedded intelligence that anticipates deformation are needed, not just mechanical force.
It's like moving from a simple hammer to a precision scalpel; the tool is the same, but the application and mastery required are of a different order of magnitude.