That Hegel's theory is derivative from Fichte's does not prevent it from being strikingly original and of independent value.

The moral law is simply the way we think our own freedom as self-determination.

Kant certainly was sympathetic with the metaphysical tradition of rational theology that he criticized.

Surely the world will be a better place, at least marginally, if people have a better understanding of Kant and Hegel, if Marx's thought its studied and appreciated, if people gain a better understanding of Fichte, whose philosophy is far more important than people realize.

I think Fichte did take it further than Kant by arguing that we can regard the moral law as objectively valid only by seeing it as addressed to us by another being, even though Fichte thought God could not literally be a person who could address us.

We can establish empirical criteria for free actions, and investigate human actions on the presupposition we are free.

The relation of the law to the self is only a helpful way of thinking about the law, that helps us better understand its validity for us.