There is a difference, though. Rice tends to soak up juices and things from what is on them. Potato starches don't do that unless you obliterate them by whipping them or ruff them up, which baked potatoes don't typically have happen to them.

One of my favorite meals on rice is lemon bacon chicken. The half and half-based sauce with lemon and bacon flavors readily sticks to rice and makes the rice as good as everything else.