I just commented something similar, asking for examples of when piracy is unethical, because I couldn't think of any myself, but your example of leaking is really interesting.
I can see how pirating/leaking an unfinished work could be really harmful to the creator and I know that would feel horrible if it happened to something I'd created.
I'm not sure why there's so much acceptance of (and even enthusiasm for) early leaked unfinished products.
We're not entirely rational creatures so even though logically we may know it won't be the finished product, it can still massively impact how something is perceived. First impressions can always make a big difference no matter how much you try to rationalise them away.
I don't know what tears of the kingdom is, to be honest, so I can't comment about that.