Stating that AI training allows a robotic hand to delicately grasp an apple is mainly a marketing argument for Festo. The incentive is clear: sell more of their expensive machines by simplifying complex technical reality.
The ability of AI to recognize an apple is one thing, but the applied force is another, managed by pressure sensors and motors, not just AI.
If the robotic arm doesn't know if it is squeezing too hard, even with the best visual recognition, it could crush the apple like crushing a can.
For a true delicate grasp to work, a complex feedback loop is needed, not just simple visual identification.