What worth would the 3d simulations produced by Blender's physics engine be? I'd imagine that they wouldn't even compare to those produced by full MD simulation

What worth would the 3d simulations produced by Blender's physics engine be? I'd imagine that they wouldn't even compare to those produced by full MD simulations, which are already of debatable correctness depending on the size of the system, force field + parameters, time step, solvent, etc...