Remote mass option with more than two points of support

SW help for remote mass option gives the following example: http://help.solidworks.com/2012/English/SolidWorks/cworks/c_Remote_Mass.htm. The engine, which is treated as a remote mass, is supported by a frame in two places. However SW simulation seems to generate some result even if the frame supports the engine in more than two places. How can such solution be generated, considering that there are more unknowns than equations, i.e. more than two forces vs 2 equations - one for total force, and one for total torque? Do I understand correctly that only mass distribution for the remote mass is factored in but not the deformations within it?

SolidworksSimulation