Air lifting heavy trucks is now possible (even in a better way) by the induction of C17 planes.The main advantage is the internal capacity! IAF is used to transport trucks, bulldozers, JCBs... internally in them, to support road construction, or during disaster relief missions. That capability is gone, since the Ch 47 can mainly carry larger loads only externally.
By understanding what IAF uses heavy lift helicopters for, which is not the same as for US forces. Btw , that Boeing brochure shows a Ch53, not a Mi 26. Whike the truck can park at the ramp of the Ch 47, it can drive into the cargo hold of the Mi 26!
So, there's no loss of any capability within IAF