I think Han may emphasize ignorance/not-knowing because Achievement society would not usually think to allow such. It would demand perfection, an all-knowing that gets everything right all the time instead of living in the organic realm of learning and mistakes, which is on the whole, more authentic.
Hello, I see that you're a relatively small channel, but you're still managing to post videos nonetheless. I wanted to let you know that I just discovered your channel and that I really value your analysis. I hope your channel gains more influence. Maybe you're not so concerned about that, maybe you're ambivalent? At any rate, contemporary philosophy is severely needed. Perhaps the grander culture may never catch up as they had with the enlightenment, but it's people like you that get us a little closer.