Create a beam that goes along the end of the first cantilever, spans the gap between the cantilevers and goes along the end of the second cantilever. Make the beam cross-section larger than the cantilevers and the material Young's Modulus 100 times higher than the material in the cantilevers. The beam will share all the nodes at the end of each cantilever. This beam replaces the Rigid Remote Force. Now you can simply apply the force to one of the nodes on the beam that spans the gap.
If the force is not at the center of the gap, the Reaction Force on the cantilevers will not be equal as explained in my previous post. When the Reaction Force is different on each cantilever, the deformation is not equal. You said you found that the deformation was equal, but I think if you look more closely, you will find that they are not equal.