Zhuangzi doesn’t teach detachment. His recommended way of living looks like detachment, but it’s actually a radical reorientation of your relationship to your personal values and the world around you. That mode of living still allows for attachment. Zhuangzi still mourned the death of Huizi, after all. The detachment you seem to be talking about is Buddhist influence on later religious Daoism (道教 as opposed to 道家).

That being said, I am sympathetic to your point and I think you’re right. I’m only pointing out some blurring that you have between religious Daoism and philosophical Daoism, which are distinct branches of thought. It’s easy to fall into this trap if you follow online Daoist groups instead of studying Daoism academically.