I also agree with Axier Concerns.
And also want to point out that this Greek Method can work very well,in Ideal climatic condition,as Grece,but not work at all,or work in the bad way for people in adverse condition,such as North east.
I also want to point out that fig fruits do not need,to be touch by the sun light,in fact the oposite,they ripe properly when shaded by the leaves of the tree.
The leaf canopy is the one harvesting the sun,not the fruits themself.
So it would not Help at all if fruits are exposes to sun.In my opinion removing leavs from fruit producing brances,will bea disadvantage for the tree,because it feeds the fruits,provide shades for them,and also provide shade for the soil under the tree keeping it moist and impeding fast evaporation,of water,in the roots area.
However leaves situated close to ground,that do not have access to the sun light,is a good thing if they are removed,because it discurages,on set of fungal deasese.