This is how I've always understood it as well. It's probably not quite this simple, but for a couple of sentences, I can't imagine having a much clearer picture.

Part of me wants to replace "post-Kantian" with some sort of Hegelian descriptor, but I suppose the difference in meaning would be somewhat negligible. I've just always felt like every continental philosophy since Hegel has essentially been a response to him less than Kant, but Kant certainly provided the foundation for what was to come.