You seem to be handwaving the definition of "free will" a bit here. On some level, the laws of physics "make all my decisions", but this clearly doesn't bother me. Is it really free will that matters, or the perception of it?

If Omega felt sorry for someone and (based on their own utility function) started making subtle interventions in their life, blocking off the possibility of bad choices and opening doors for good choices, all without them noticing--they'd still be reacting to their environment and would have a higher utility. Is that bad?